
3个回答
展开全部
一元一次方程:
1. 2(x-2)-3(4x-1)=9(1-x)
2. 11x+64-2x=100-9x
3. 15-(8-5x)=7x+(4-3x)
4. 3(x-7)-2[9-4(2-x)]=22
5. 3/2[2/3(1/4x-1)-2]-x=2
6. 2(x-2)+2=x+1
7. 0.4(x-0.2)+1.5=0.7x-0.38
8. 30x-10(10-x)=100
9. 4(x+2)=5(x-2)
10. 120-4(x+5)=25
11. 15x+863-65x=54
12. 12.3(x-2)+1=x-(2x-1)
13. 11x+64-2x=100-9x
14. 14.59+x-25.31=0
15. x-48.32+78.51=80
16. 820-16x=45.5×8
17. (x-6)×7=2x
18. 3x+x=18
19. 0.8+3.2=7.2
20. 12.5-3x=6.5
21. 1.2(x-0.64)=0.54
22. x+12.5=3.5x
23. 8x-22.8=1.2
24. 1\ 50x+10=60
25. 2\ 60x-30=20
26. 3\ 3^20x+50=110
27. 4\ 2x=5x-3
28. 5\ 90=10+x
29. 6\ 90+20x=30
30. 7\ 691+3x=700
题:10 x + 90 = 290
解:10 x = 290-90
x= 200/10
x= 20
题:10 x + 91 = 291
解:10 x = 291-91
x= 200/10
x= 20
题:10 x + 92 = 292
解:10 x = 292-92
x= 200/10
x= 20
题:10 x + 93 = 293
解:10 x = 293-93
x= 200/10
x= 20
题:10 x + 94 = 294
解:10 x = 294-94
x= 200/10
x= 20
题:10 x + 95 = 295
解:10 x = 295-95
x= 200/10
x= 20
题:10 x + 96 = 296
解:10 x = 296-96
x= 200/10
x= 20
题:10 x + 97 = 297
解:10 x = 297-97
x= 200/10
x= 20
题:10 x + 98 = 298
解:10 x = 298-98
x= 200/10
x= 20
题:10 x + 99 = 299
解:10 x = 299-99
x= 200/10
x= 20
题:10 x + 90 = 300
解:10 x = 300-90
x= 210/10
x= 21
题:10 x + 91 = 301
解:10 x = 301-91
x= 210/10
x= 21
题:10 x + 92 = 302
解:10 x = 302-92
x= 210/10
x= 21
题:10 x + 93 = 303
解:10 x = 303-93
x= 210/10
x= 21
题:10 x + 94 = 304
解:10 x = 304-94
x= 210/10
x= 21
题:10 x + 95 = 305
解:10 x = 305-95
x= 210/10
x= 21
题:10 x + 96 = 306
解:10 x = 306-96
x= 210/10
x= 21
题:10 x + 97 = 307
解:10 x = 307-97
x= 210/10
x= 21
题:10 x + 98 = 308
解:10 x = 308-98
x= 210/10
x= 21
题:10 x + 99 = 309
解:10 x = 309-99
x= 210/10
x= 21
题:10 x + 90 = 310
解:10 x = 310-90
x= 220/10
x= 22
题:10 x + 91 = 311
解:10 x = 311-91
x= 220/10
x= 22
题:10 x + 92 = 312
解:10 x = 312-92
x= 220/10
x= 22
题:10 x + 93 = 313
解:10 x = 313-93
x= 220/10
x= 22
题:10 x + 94 = 314
解:10 x = 314-94
x= 220/10
x= 22
题:10 x + 95 = 315
解:10 x = 315-95
x= 220/10
x= 22
题:10 x + 96 = 316
解:10 x = 316-96
x= 220/10
x= 22
题:10 x + 97 = 317
解:10 x = 317-97
x= 220/10
x= 22
题:10 x + 98 = 318
解:10 x = 318-98
x= 220/10
x= 22
题:10 x + 99 = 319
解:10 x = 319-99
x= 220/10
x= 22
题:10 x + 90 = 320
解:10 x = 320-90
x= 230/10
x= 23
题:10 x + 91 = 321
解:10 x = 321-91
x= 230/10
x= 23
题:10 x + 92 = 322
解:10 x = 322-92
x= 230/10
x= 23
题:10 x + 93 = 323
解:10 x = 323-93
x= 230/10
x= 23
题:10 x + 94 = 324
解:10 x = 324-94
x= 230/10
x= 23
题:10 x + 95 = 325
解:10 x = 325-95
x= 230/10
x= 23
题:10 x + 96 = 326
解:10 x = 326-96
x= 230/10
x= 23
题:10 x + 97 = 327
解:10 x = 327-97
x= 230/10
x= 23
题:10 x + 98 = 328
解:10 x = 328-98
x= 230/10
x= 23
题:10 x + 99 = 329
解:10 x = 329-99
x= 230/10
x= 23
题:10 x + 90 = 330
解:10 x = 330-90
x= 240/10
x= 24
题:10 x + 91 = 331
解:10 x = 331-91
x= 240/10
x= 24
题:10 x + 92 = 332
解:10 x = 332-92
x= 240/10
x= 24
题:10 x + 93 = 333
解:10 x = 333-93
x= 240/10
x= 24
题:10 x + 94 = 334
解:10 x = 334-94
x= 240/10
x= 24
题:10 x + 95 = 335
解:10 x = 335-95
x= 240/10
x= 24
题:10 x + 96 = 336
解:10 x = 336-96
x= 240/10
x= 24
题:10 x + 97 = 337
解:10 x = 337-97
x= 240/10
x= 24
题:10 x + 98 = 338
解:10 x = 338-98
x= 240/10
x= 24
题:10 x + 99 = 339
解:10 x = 339-99
x= 240/10
x= 24
题:10 x + 90 = 340
解:10 x = 340-90
x= 250/10
x= 25
题:10 x + 91 = 341
解:10 x = 341-91
x= 250/10
x= 25
题:10 x + 92 = 342
解:10 x = 342-92
x= 250/10
x= 25
题:10 x + 93 = 343
解:10 x = 343-93
x= 250/10
x= 25
题:10 x + 94 = 344
解:10 x = 344-94
x= 250/10
x= 25
题:10 x + 95 = 345
解:10 x = 345-95
x= 250/10
x= 25
题:10 x + 96 = 346
解:10 x = 346-96
x= 250/10
x= 25
题:10 x + 97 = 347
解:10 x = 347-97
x= 250/10
x= 25
题:10 x + 98 = 348
解:10 x = 348-98
x= 250/10
x= 25
题:10 x + 99 = 349
解:10 x = 349-99
x= 250/10
x= 25
题:10 x + 90 = 350
解:10 x = 350-90
x= 260/10
x= 26
题:10 x + 91 = 351
解:10 x = 351-91
x= 260/10
x= 26
题:10 x + 92 = 352
解:10 x = 352-92
x= 260/10
x= 26
题:10 x + 93 = 353
解:10 x = 353-93
x= 260/10
x= 26
题:10 x + 94 = 354
解:10 x = 354-94
x= 260/10
x= 26
题:10 x + 95 = 355
解:10 x = 355-95
x= 260/10
x= 26
题:10 x + 96 = 356
解:10 x = 356-96
x= 260/10
x= 26
题:10 x + 97 = 357
解:10 x = 357-97
x= 260/10
x= 26
题:10 x + 98 = 358
解:10 x = 358-98
x= 260/10
x= 26
题:10 x + 99 = 359
解:10 x = 359-99
x= 260/10
x= 26
题:10 x + 90 = 360
解:10 x = 360-90
x= 270/10
x= 27
题:10 x + 91 = 361
解:10 x = 361-91
x= 270/10
x= 27
题:10 x + 92 = 362
解:10 x = 362-92
x= 270/10
x= 27
题:10 x + 93 = 363
解:10 x = 363-93
x= 270/10
x= 27
题:10 x + 94 = 364
解:10 x = 364-94
x= 270/10
x= 27
题:10 x + 95 = 365
解:10 x = 365-95
x= 270/10
x= 27
题:10 x + 96 = 366
解:10 x = 366-96
x= 270/10
x= 27
题:10 x + 97 = 367
解:10 x = 367-97
x= 270/10
x= 27
题:10 x + 98 = 368
解:10 x = 368-98
x= 270/10
x= 27
题:10 x + 99 = 369
解:10 x = 369-99
x= 270/10
x= 27
题:10 x + 90 = 370
解:10 x = 370-90
x= 280/10
x= 28
题:10 x + 91 = 371
解:10 x = 371-91
x= 280/10
x= 28
题:10 x + 92 = 372
解:10 x = 372-92
x= 280/10
x= 28
题:10 x + 93 = 373
解:10 x = 373-93
x= 280/10
x= 28
题:10 x + 94 = 374
解:10 x = 374-94
x= 280/10
x= 28
1. 2(x-2)-3(4x-1)=9(1-x)
2. 11x+64-2x=100-9x
3. 15-(8-5x)=7x+(4-3x)
4. 3(x-7)-2[9-4(2-x)]=22
5. 3/2[2/3(1/4x-1)-2]-x=2
6. 2(x-2)+2=x+1
7. 0.4(x-0.2)+1.5=0.7x-0.38
8. 30x-10(10-x)=100
9. 4(x+2)=5(x-2)
10. 120-4(x+5)=25
11. 15x+863-65x=54
12. 12.3(x-2)+1=x-(2x-1)
13. 11x+64-2x=100-9x
14. 14.59+x-25.31=0
15. x-48.32+78.51=80
16. 820-16x=45.5×8
17. (x-6)×7=2x
18. 3x+x=18
19. 0.8+3.2=7.2
20. 12.5-3x=6.5
21. 1.2(x-0.64)=0.54
22. x+12.5=3.5x
23. 8x-22.8=1.2
24. 1\ 50x+10=60
25. 2\ 60x-30=20
26. 3\ 3^20x+50=110
27. 4\ 2x=5x-3
28. 5\ 90=10+x
29. 6\ 90+20x=30
30. 7\ 691+3x=700
题:10 x + 90 = 290
解:10 x = 290-90
x= 200/10
x= 20
题:10 x + 91 = 291
解:10 x = 291-91
x= 200/10
x= 20
题:10 x + 92 = 292
解:10 x = 292-92
x= 200/10
x= 20
题:10 x + 93 = 293
解:10 x = 293-93
x= 200/10
x= 20
题:10 x + 94 = 294
解:10 x = 294-94
x= 200/10
x= 20
题:10 x + 95 = 295
解:10 x = 295-95
x= 200/10
x= 20
题:10 x + 96 = 296
解:10 x = 296-96
x= 200/10
x= 20
题:10 x + 97 = 297
解:10 x = 297-97
x= 200/10
x= 20
题:10 x + 98 = 298
解:10 x = 298-98
x= 200/10
x= 20
题:10 x + 99 = 299
解:10 x = 299-99
x= 200/10
x= 20
题:10 x + 90 = 300
解:10 x = 300-90
x= 210/10
x= 21
题:10 x + 91 = 301
解:10 x = 301-91
x= 210/10
x= 21
题:10 x + 92 = 302
解:10 x = 302-92
x= 210/10
x= 21
题:10 x + 93 = 303
解:10 x = 303-93
x= 210/10
x= 21
题:10 x + 94 = 304
解:10 x = 304-94
x= 210/10
x= 21
题:10 x + 95 = 305
解:10 x = 305-95
x= 210/10
x= 21
题:10 x + 96 = 306
解:10 x = 306-96
x= 210/10
x= 21
题:10 x + 97 = 307
解:10 x = 307-97
x= 210/10
x= 21
题:10 x + 98 = 308
解:10 x = 308-98
x= 210/10
x= 21
题:10 x + 99 = 309
解:10 x = 309-99
x= 210/10
x= 21
题:10 x + 90 = 310
解:10 x = 310-90
x= 220/10
x= 22
题:10 x + 91 = 311
解:10 x = 311-91
x= 220/10
x= 22
题:10 x + 92 = 312
解:10 x = 312-92
x= 220/10
x= 22
题:10 x + 93 = 313
解:10 x = 313-93
x= 220/10
x= 22
题:10 x + 94 = 314
解:10 x = 314-94
x= 220/10
x= 22
题:10 x + 95 = 315
解:10 x = 315-95
x= 220/10
x= 22
题:10 x + 96 = 316
解:10 x = 316-96
x= 220/10
x= 22
题:10 x + 97 = 317
解:10 x = 317-97
x= 220/10
x= 22
题:10 x + 98 = 318
解:10 x = 318-98
x= 220/10
x= 22
题:10 x + 99 = 319
解:10 x = 319-99
x= 220/10
x= 22
题:10 x + 90 = 320
解:10 x = 320-90
x= 230/10
x= 23
题:10 x + 91 = 321
解:10 x = 321-91
x= 230/10
x= 23
题:10 x + 92 = 322
解:10 x = 322-92
x= 230/10
x= 23
题:10 x + 93 = 323
解:10 x = 323-93
x= 230/10
x= 23
题:10 x + 94 = 324
解:10 x = 324-94
x= 230/10
x= 23
题:10 x + 95 = 325
解:10 x = 325-95
x= 230/10
x= 23
题:10 x + 96 = 326
解:10 x = 326-96
x= 230/10
x= 23
题:10 x + 97 = 327
解:10 x = 327-97
x= 230/10
x= 23
题:10 x + 98 = 328
解:10 x = 328-98
x= 230/10
x= 23
题:10 x + 99 = 329
解:10 x = 329-99
x= 230/10
x= 23
题:10 x + 90 = 330
解:10 x = 330-90
x= 240/10
x= 24
题:10 x + 91 = 331
解:10 x = 331-91
x= 240/10
x= 24
题:10 x + 92 = 332
解:10 x = 332-92
x= 240/10
x= 24
题:10 x + 93 = 333
解:10 x = 333-93
x= 240/10
x= 24
题:10 x + 94 = 334
解:10 x = 334-94
x= 240/10
x= 24
题:10 x + 95 = 335
解:10 x = 335-95
x= 240/10
x= 24
题:10 x + 96 = 336
解:10 x = 336-96
x= 240/10
x= 24
题:10 x + 97 = 337
解:10 x = 337-97
x= 240/10
x= 24
题:10 x + 98 = 338
解:10 x = 338-98
x= 240/10
x= 24
题:10 x + 99 = 339
解:10 x = 339-99
x= 240/10
x= 24
题:10 x + 90 = 340
解:10 x = 340-90
x= 250/10
x= 25
题:10 x + 91 = 341
解:10 x = 341-91
x= 250/10
x= 25
题:10 x + 92 = 342
解:10 x = 342-92
x= 250/10
x= 25
题:10 x + 93 = 343
解:10 x = 343-93
x= 250/10
x= 25
题:10 x + 94 = 344
解:10 x = 344-94
x= 250/10
x= 25
题:10 x + 95 = 345
解:10 x = 345-95
x= 250/10
x= 25
题:10 x + 96 = 346
解:10 x = 346-96
x= 250/10
x= 25
题:10 x + 97 = 347
解:10 x = 347-97
x= 250/10
x= 25
题:10 x + 98 = 348
解:10 x = 348-98
x= 250/10
x= 25
题:10 x + 99 = 349
解:10 x = 349-99
x= 250/10
x= 25
题:10 x + 90 = 350
解:10 x = 350-90
x= 260/10
x= 26
题:10 x + 91 = 351
解:10 x = 351-91
x= 260/10
x= 26
题:10 x + 92 = 352
解:10 x = 352-92
x= 260/10
x= 26
题:10 x + 93 = 353
解:10 x = 353-93
x= 260/10
x= 26
题:10 x + 94 = 354
解:10 x = 354-94
x= 260/10
x= 26
题:10 x + 95 = 355
解:10 x = 355-95
x= 260/10
x= 26
题:10 x + 96 = 356
解:10 x = 356-96
x= 260/10
x= 26
题:10 x + 97 = 357
解:10 x = 357-97
x= 260/10
x= 26
题:10 x + 98 = 358
解:10 x = 358-98
x= 260/10
x= 26
题:10 x + 99 = 359
解:10 x = 359-99
x= 260/10
x= 26
题:10 x + 90 = 360
解:10 x = 360-90
x= 270/10
x= 27
题:10 x + 91 = 361
解:10 x = 361-91
x= 270/10
x= 27
题:10 x + 92 = 362
解:10 x = 362-92
x= 270/10
x= 27
题:10 x + 93 = 363
解:10 x = 363-93
x= 270/10
x= 27
题:10 x + 94 = 364
解:10 x = 364-94
x= 270/10
x= 27
题:10 x + 95 = 365
解:10 x = 365-95
x= 270/10
x= 27
题:10 x + 96 = 366
解:10 x = 366-96
x= 270/10
x= 27
题:10 x + 97 = 367
解:10 x = 367-97
x= 270/10
x= 27
题:10 x + 98 = 368
解:10 x = 368-98
x= 270/10
x= 27
题:10 x + 99 = 369
解:10 x = 369-99
x= 270/10
x= 27
题:10 x + 90 = 370
解:10 x = 370-90
x= 280/10
x= 28
题:10 x + 91 = 371
解:10 x = 371-91
x= 280/10
x= 28
题:10 x + 92 = 372
解:10 x = 372-92
x= 280/10
x= 28
题:10 x + 93 = 373
解:10 x = 373-93
x= 280/10
x= 28
题:10 x + 94 = 374
解:10 x = 374-94
x= 280/10
x= 28
展开全部
A,B两人共有书10本,其中A有3本,问B有几本?
解:假设B有x本
x+3=10
x=10-3
x=7
答:B有7本
解:假设B有x本
x+3=10
x=10-3
x=7
答:B有7本
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展开全部
A,B两人共有书10本,其中A有3本,问B有几本?
解:假设B有x本
x+3=10
x=10-3
x=7
解:假设B有x本
x+3=10
x=10-3
x=7
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