Question

a ) 25 - 10x - x = x + 30​

Answer 1

Resposta:

S = { - 5/12 }

Explicação passo-a-passo:

.

25 - 10x - x = x + 30

- 11x - x = 30 - 25

- 12x = 5

x = - 5/12

.

(Espero ter colaborado)

Answer 2

Resposta:

$25 - 10x - x = x + 30\\\\25-11x=x+30\\\\25-11x-25=x+30-25\\\\-11x=x+5\\\\-11x-x=x+5-x\\\\-12x=5\\\\\frac{-12x}{-12}=\frac{5}{-12}\\\\x=-\frac{5}{12}$