Question

d) 9x – 3(2x + 2) = 15

Answer 1

Explicação passo-a-passo:

$9x - 3(2x + 2) = 15$

$9x - 6x - 6 = 15$

$3x = 15 + 6$

$3x = 21$

$x = \frac{21}{3}$

$x = 7$