Question

6x+15=-3x+42
Me ajudem por favorr

Answer 1

Espero ter ajudado.

$6x+15=-3x+42\\\\6x+15-15=-3x+42-15\\\\6x=-3x+27\\\\6x+3x=-3x+27+3x\\\\6x+3x=-3x+27+3x\\\\9x=27\\\\\frac{9x}{9}=\frac{27}{9}\\\\\boxed{x=3}$

Answer 2

Resposta

x=3

Explicação passo-a-passo:

6x+15=-3x+42

6x + 3x + 15 =42

9x= 42-15

x= 3