M+3m+9m-4=

Solution for M+3m+9m-4= equation:

Simplifying
M + 3m + 9m + -4 = 0

Reorder the terms:
-4 + M + 3m + 9m = 0

Combine like terms: 3m + 9m = 12m
-4 + M + 12m = 0

Solving
-4 + M + 12m = 0

Solving for variable 'M'.

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

Add '4' to each side of the equation.
-4 + M + 4 + 12m = 0 + 4

Reorder the terms:
-4 + 4 + M + 12m = 0 + 4

Combine like terms: -4 + 4 = 0
0 + M + 12m = 0 + 4
M + 12m = 0 + 4

Combine like terms: 0 + 4 = 4
M + 12m = 4

Add '-12m' to each side of the equation.
M + 12m + -12m = 4 + -12m

Combine like terms: 12m + -12m = 0
M + 0 = 4 + -12m
M = 4 + -12m

Simplifying
M = 4 + -12m