78=-3(-6x-2)

Solution for 78=-3(-6x-2) equation:

Simplifying
78 = -3(-6x + -2)

Reorder the terms:
78 = -3(-2 + -6x)
78 = (-2 * -3 + -6x * -3)
78 = (6 + 18x)

Solving
78 = 6 + 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
78 + -18x = 6 + 18x + -18x

Combine like terms: 18x + -18x = 0
78 + -18x = 6 + 0
78 + -18x = 6

Add '-78' to each side of the equation.
78 + -78 + -18x = 6 + -78

Combine like terms: 78 + -78 = 0
0 + -18x = 6 + -78
-18x = 6 + -78

Combine like terms: 6 + -78 = -72
-18x = -72

Divide each side by '-18'.
x = 4

Simplifying
x = 4