0.2(0.2-x)÷0.01+1.2x=0.12+20x
问题描述:
0.2(0.2-x)÷0.01+1.2x=0.12+20x
答
0.04*0.01-0.2x*0.01+1.2x=0.12+20x 4-20x+1.2x=0.12+20x 18.8x=20x-3.88 20x-18.8x=3.88 1.2x=3.88 x=3.88*1.2 x=3.2333333