# How do you solve 3x +4 (3x+22) = -47?

Get rid of the bracket by multiplying by $4$:
$3 x + 12 x + 88 = - 47$
isolate $x$ on the left (remembering to change sign if crossing the $=$ sign);
$3 x + 12 x = - 88 - 47$
$15 x = - 135$
Divide both sides by $15$
$x = - \frac{135}{15} = - 9$