8x=13-10+60%=3.6,x=0.45
(1/3-1/4)x=8,1/12x=8,x=96
120%x=30-26,x=10/3
50%x=18-6,x=24
20,80%x=1.3+14.7
12.5%*9x=75%-12.5%*0.5,x=11/18
120%-8.4=0?,120%x-8.4=0,x=7
1.8,x=4.5*40%
0.09,4x=36%
15,10%x=150%
0.1,4x=120%-4*20%
3,(7-25%)x=21.15-90%
给分吧,细化步骤自己加上去,自己多想想,做多了就都会了