解方程:3x-5/6x=13/18 5x-5/6=5/12 75-2/5=?解方程:3x-5/6x=13/18 5x-5/6=5/12 75-2/5=?75+2/5=?

问题描述:

解方程:3x-5/6x=13/18 5x-5/6=5/12 75-2/5=?
解方程:3x-5/6x=13/18 5x-5/6=5/12 75-2/5=?
75+2/5=?