Question

quanto dá 4x-10=2x+2 sendo U = Q?

Answer 1

4x-10=2x+2
4x-2x=2+10
2x=12
x=12/2
x=6

Answer 2

4x -10 = 2x - 2
4x -2x = +2 +10
      2x = 12
        x = 6