-28+-63=x

Solution for -28+-63=x equation:

Simplifying
-28 + -63 = x

Combine like terms: -28 + -63 = -91
-91 = x

Solving
-91 = 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.
-91 + -1x = x + -1x

Combine like terms: x + -1x = 0
-91 + -1x = 0

Add '91' to each side of the equation.
-91 + 91 + -1x = 0 + 91

Combine like terms: -91 + 91 = 0
0 + -1x = 0 + 91
-1x = 0 + 91

Combine like terms: 0 + 91 = 91
-1x = 91

Divide each side by '-1'.
x = -91

Simplifying
x = -91