-3-3(-4m-2)=75

Solution for -3-3(-4m-2)=75 equation:

Simplifying
-3 + -3(-4m + -2) = 75

Reorder the terms:
-3 + -3(-2 + -4m) = 75
-3 + (-2 * -3 + -4m * -3) = 75
-3 + (6 + 12m) = 75

Combine like terms: -3 + 6 = 3
3 + 12m = 75

Solving
3 + 12m = 75

Solving for variable 'm'.

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

Add '-3' to each side of the equation.
3 + -3 + 12m = 75 + -3

Combine like terms: 3 + -3 = 0
0 + 12m = 75 + -3
12m = 75 + -3

Combine like terms: 75 + -3 = 72
12m = 72

Divide each side by '12'.
m = 6

Simplifying
m = 6