5-7x÷6=3-5x÷5-1

问题描述:

5-7x÷6=3-5x÷5-1

5-7x÷6=3-5x÷5-1
x-7x÷6=-3

×6

-x=-18
x=18

5-7x÷6=3-5x÷5-1
5-7/6x=3-x-1=2-x
3=1/6x
x=18