-51-36=x

Solution for -51-36=x equation:

Simplifying
-51 + -36 = x

Combine like terms: -51 + -36 = -87
-87 = x

Solving
-87 = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-87 + -1x = x + -1x

Combine like terms: x + -1x = 0
-87 + -1x = 0

Add '87' to each side of the equation.
-87 + 87 + -1x = 0 + 87

Combine like terms: -87 + 87 = 0
0 + -1x = 0 + 87
-1x = 0 + 87

Combine like terms: 0 + 87 = 87
-1x = 87

Divide each side by '-1'.
x = -87

Simplifying
x = -87