Question

8x除以6=0.24、2.4x4一2.9x=3.8、1.8除以0.6x=3、6.12x0.5十0.

8x除以6=0.24、2.4x4一2.9x=3.8、1.8除以0.6x=3、6.12x0.5十0.6x=7.2、18.6一0.6x=13.8、1.4x一1.6=46、9.75十1.5x=12怎么解方程

Answer 1

8x÷6=0.24
x÷6 = 0.24÷8 = 0.03
x = 6*0.03 = 0.18

2.4*4-2.9x=3.8
9.6-2.9x=3.8
2.9x=9.6-3.8=5.8
x=2

1.8÷0.6x=3
0.6x=1.8÷3=0.6
x=1

6.12*0.5+0.6x=7.2
6.12*5+6x=72
30.6+6x=72
5.1+x=12
x=12-5.1 = 6.9

18.6-0.6x=13.8
31-x=23
x=31-23=8

1.4x-1.6=46
1.4x = 46+1.6 = 47.6
x = 47.6/1.4 = 34

9.75+1.5x=12
19.5+3x=24
3x=24-19.5 = 4.5
x=1.5