Question

Quanto é 7x-4-x=-7x+8-3x?

Answer 1

7x-4-x=-7x+8-3x?
7x-x+7x+3x=8+4
16x=12
x=12/16
x=0,75 ou 12/16 

Answer 2

7x -x +3x +7x = 8+4
16x = 12
x = 12
      ----
      16
x =0,75