Respostas

2014-04-16T14:22:20-03:00
Aplicando a distributiva

4(x+6) - x = 5x
4.x + 4.6 - x = 5x
4x + 24 - x = 5x
4x - x - 5x = -24
4x - 6x = -24
-2x = -24
x = -24/-2
x = 12
  • Usuário do Brainly
2014-04-16T14:24:34-03:00
Temos então:

4.(x+6)-x=5x
4x+24-x=5x
24=5x+x-4x
24=6x-4x
24=2x
2x=24
x=24÷2
x=12