二元一次方程组和一元一次不等式不等式组各100道要过程和答案 100
3个回答
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为什么是100道
1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案:x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案:x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案:x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案:x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案:x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案:x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案:x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案:x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案:x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案:x=41 y=50
一元一次不等式(组)
(1)98/X>7
98/(X+3)<7
答:11<X<14
(2)0≤3x+8-(x-1)*5<3
答:5<x≤6
(3)1.1*30/22<1.1+x<1.1*30/20
答:0.4<x<0.55
(4)2x-1<4x+13
答: x>-7.
(5)2(5x+3)≤x-3(1-2x),
答:x≤-3.
(6) 2(x+4)-3(3x-1)>6,
答:x<7/5
(7)2x-3x-3<6
答:x<-9
(8)2(x-1)>3(x-1)-x-5
答:无解
(9)2x+3<-1
答:x<-2
(10)50+x<2x-30
答:x>80
(11)x+1>2x-1
答:x<2
(12)0.5x+12-0.5<8.5
答:x<-6
(13)2x+5>1
答:x>-2
(14)6x+1>25
答:x>4
(15)x+15<22-2x
答:x<7/3
(16)5x+3>6
答:x>3/5
(17)9x+21>(x+1)2
答:x>-7/19
(18)(x+1)3>(x-10)2
答:x>-23
(19)20x>40
答:x>2
(20)15x+20<7x+10
答:x<-4/5
请采纳答案,支持我一下。
1) 66x+17y=3967
25x+y=1200
答案:x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案:x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案:x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案:x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案:x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案:x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案:x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案:x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案:x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案:x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案:x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案:x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案:x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案:x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案:x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案:x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案:x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案:x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案:x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案:x=41 y=50
一元一次不等式(组)
(1)98/X>7
98/(X+3)<7
答:11<X<14
(2)0≤3x+8-(x-1)*5<3
答:5<x≤6
(3)1.1*30/22<1.1+x<1.1*30/20
答:0.4<x<0.55
(4)2x-1<4x+13
答: x>-7.
(5)2(5x+3)≤x-3(1-2x),
答:x≤-3.
(6) 2(x+4)-3(3x-1)>6,
答:x<7/5
(7)2x-3x-3<6
答:x<-9
(8)2(x-1)>3(x-1)-x-5
答:无解
(9)2x+3<-1
答:x<-2
(10)50+x<2x-30
答:x>80
(11)x+1>2x-1
答:x<2
(12)0.5x+12-0.5<8.5
答:x<-6
(13)2x+5>1
答:x>-2
(14)6x+1>25
答:x>4
(15)x+15<22-2x
答:x<7/3
(16)5x+3>6
答:x>3/5
(17)9x+21>(x+1)2
答:x>-7/19
(18)(x+1)3>(x-10)2
答:x>-23
(19)20x>40
答:x>2
(20)15x+20<7x+10
答:x<-4/5
请采纳答案,支持我一下。
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