Question

Resolva:
2(x+6) – 4 (x-2) < -7x

Answer 1

2(x + 6) - 4(x - 2) < - 7x
Efetuando
2x + 12 - 4x + 8 < - 7x
Reduzindo termos semelhantes
2x - 4x + 7x < - 12 - 8
              5x < - 20
                x < - 20/5
                                    x < - 4

Answer 2

2x+12-4x+8 <-7x-->7x-2x <-20-->5x <-20-->x <-20/5-->x <-4