12m-6+4(3m)=90

Solution for 12m-6+4(3m)=90 equation:

Simplifying
12m + -6 + 4(3m) = 90

Remove parenthesis around (3m)
12m + -6 + 4 * 3m = 90

Multiply 4 * 3
12m + -6 + 12m = 90

Reorder the terms:
-6 + 12m + 12m = 90

Combine like terms: 12m + 12m = 24m
-6 + 24m = 90

Solving
-6 + 24m = 90

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '6' to each side of the equation.
-6 + 6 + 24m = 90 + 6

Combine like terms: -6 + 6 = 0
0 + 24m = 90 + 6
24m = 90 + 6

Combine like terms: 90 + 6 = 96
24m = 96

Divide each side by '24'.
m = 4

Simplifying
m = 4