Question

2[25%+1]=[2-x][1+25%+12%]的解题过程

Answer 1

我试试吧

2[25%+1]=[2-x][1+25%+12%]

2 / [2-x]=[1+25%+12%] / [25%+1]

2/ [2-x]=[1+25%] / [25%+1]+12%/ [25%+1]

2/ [2-x]=1+12%/ [25%+1]

2/ [2-x]=1+12/100*4/5

2/ [2-x]=1+12/125

2/ [2-x]=137/125

2*125/137=2-x

x=2-250/137

x=0.28