Question

Помогите найти корень уравнения)

Answer 1

(-3m-219)/15+17=4
-3m-219+255=60
-3m=24
m=-8

Answer 2

$\frac{-3m-219}{15} -17=4\\\\ \frac{-3m-219}{15}*15-17*15=4*15\\\\-3m-219-255=60\\\\-3m-474=60\\\\-3m=534\\\\m=-178$