-(h-12)=-78

Solution for -(h-12)=-78 equation:

Simplifying
-1(h + -12) = -78

Reorder the terms:
-1(-12 + h) = -78
(-12 * -1 + h * -1) = -78
(12 + -1h) = -78

Solving
12 + -1h = -78

Solving for variable 'h'.

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

Add '-12' to each side of the equation.
12 + -12 + -1h = -78 + -12

Combine like terms: 12 + -12 = 0
0 + -1h = -78 + -12
-1h = -78 + -12

Combine like terms: -78 + -12 = -90
-1h = -90

Divide each side by '-1'.
h = 90

Simplifying
h = 90