3(-4x-2)=-78

Solution for 3(-4x-2)=-78 equation:

Simplifying
3(-4x + -2) = -78

Reorder the terms:
3(-2 + -4x) = -78
(-2 * 3 + -4x * 3) = -78
(-6 + -12x) = -78

Solving
-6 + -12x = -78

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -12x = -78 + 6

Combine like terms: -6 + 6 = 0
0 + -12x = -78 + 6
-12x = -78 + 6

Combine like terms: -78 + 6 = -72
-12x = -72

Divide each side by '-12'.
x = 6

Simplifying
x = 6