3(3x-2)=10-0.5(x+3.5)
3*3x-3*2=10-0.5x-0.5*3.5
9x-6=10-0.5x-1.75
9x+0.5x=10-1.75+6
9.5x=14.25
x=14.25÷9.5
x=1.5
解: 3(3x-2)=10-0.5(x+3.5)
9x-6=10- 1/2 *x-7/4
9x+1/2 x=10+6-7/4
19/2 x=14又1/4
x=57/4 * 2/19
x=3/2
3(3x-2)=10-0.5(x+3.5)
两边乘以4
12(3x-2)=40-(2x+7)
36x-24=40-2x-7
两边+2x+24
38x=57
x=57/38