Question

7x - 8 = 4 + 5x


Me ajudem a calcular essa conta, por favor!!

Answer 1

7x - 8 = 4 + 5x
7x - 5x = 8 + 4 ( troca de lugar, inverte o sinal )
2x = 12
x = 12/2
x = 6

Answer 2

7x - 8 = 4 + 5x
7x - 5x = 4 + 8
      2x = 12
        x = 12/2
        x = 6