72=x+y

Solution for 72=x+y equation:

Simplifying
72 = x + y

Solving
72 = x + y

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 = x + -1x + y

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

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

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

Divide each side by '-1'.
x = 72 + -1y

Simplifying
x = 72 + -1y