Question

Verifique se 30 e a raiz da equaçao 3×+6+12= 4×- 12

Answer 1

Resposta:

3x+6+12=4x-12

3x+18=4x-12

18+12 =4x-3x

30=x

Ok,  é raiz..

Answer 2

Sim

4× - 3× = 6+12+12

1× = 30

× = 30 ÷ 1

× = 30