解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3

问题描述:

解方程:2(3-y)=5-4(y+5) (2x+1)/6+(x-1)/3=1     60%x-(x+3)*50%=3