30=-3(24-m)+3(m-3)

Solution for 30=-3(24-m)+3(m-3) equation:

30=-3(24-m)+3(m-3)

We simplify the equation to the form, which is simple to understand 
30=-3(24-m)+3(m-3)

Reorder the terms in parentheses
30=+(-72+3m)+3*(m-3)

Remove unnecessary parentheses
+30=-72+3m+3+*(+m-3+)

Reorder the terms in parentheses
30=-72+3m+(+3m-9)

Remove unnecessary parentheses
+30=-72+3m+3m-9

We move all terms containing m to the left and all other terms to the right. 
-3m-3m=-72-9-30

We simplify left and right side of the equation. 
-6m=-111

We divide both sides of the equation by -6 to get m. 
m=18.5