-42=x-91

Solution for -42=x-91 equation:

Simplifying
-42 = x + -91

Reorder the terms:
-42 = -91 + x

Solving
-42 = -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.
-42 + -1x = -91 + x + -1x

Combine like terms: x + -1x = 0
-42 + -1x = -91 + 0
-42 + -1x = -91

Add '42' to each side of the equation.
-42 + 42 + -1x = -91 + 42

Combine like terms: -42 + 42 = 0
0 + -1x = -91 + 42
-1x = -91 + 42

Combine like terms: -91 + 42 = -49
-1x = -49

Divide each side by '-1'.
x = 49

Simplifying
x = 49