2(5+6m+16)=-90

Solution for 2(5+6m+16)=-90 equation:

Simplifying
2(5 + 6m + 16) = -90

Reorder the terms:
2(5 + 16 + 6m) = -90

Combine like terms: 5 + 16 = 21
2(21 + 6m) = -90
(21 * 2 + 6m * 2) = -90
(42 + 12m) = -90

Solving
42 + 12m = -90

Solving for variable 'm'.

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

Add '-42' to each side of the equation.
42 + -42 + 12m = -90 + -42

Combine like terms: 42 + -42 = 0
0 + 12m = -90 + -42
12m = -90 + -42

Combine like terms: -90 + -42 = -132
12m = -132

Divide each side by '12'.
m = -11

Simplifying
m = -11