(0.2x-0.1)/0.3-(0.01x+0.02)/0.06=20

问题描述:

(0.2x-0.1)/0.3-(0.01x+0.02)/0.06=20

(0.2x-0.1)/0.3-(0.01x+0.02)/0.06=20
(2x-1)/3-(x+2)/6=20
2(2x-1)-(x+2)=120
4x-2-x-2=120
3x=120+4
x=124/3