72=x+89

Solution for 72=x+89 equation:

Simplifying
72 = x + 89

Reorder the terms:
72 = 89 + x

Solving
72 = 89 + 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.
72 + -1x = 89 + x + -1x

Combine like terms: x + -1x = 0
72 + -1x = 89 + 0
72 + -1x = 89

Add '-72' to each side of the equation.
72 + -72 + -1x = 89 + -72

Combine like terms: 72 + -72 = 0
0 + -1x = 89 + -72
-1x = 89 + -72

Combine like terms: 89 + -72 = 17
-1x = 17

Divide each side by '-1'.
x = -17

Simplifying
x = -17