(3+m+8)+4=

Solution for (3+m+8)+4= equation:

Simplifying
(3 + m + 8) + 4 = 0

Reorder the terms:
(3 + 8 + m) + 4 = 0

Combine like terms: 3 + 8 = 11
(11 + m) + 4 = 0

Remove parenthesis around (11 + m)
11 + m + 4 = 0

Reorder the terms:
11 + 4 + m = 0

Combine like terms: 11 + 4 = 15
15 + m = 0

Solving
15 + m = 0

Solving for variable 'm'.

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

Add '-15' to each side of the equation.
15 + -15 + m = 0 + -15

Combine like terms: 15 + -15 = 0
0 + m = 0 + -15
m = 0 + -15

Combine like terms: 0 + -15 = -15
m = -15

Simplifying
m = -15