72=f+64

Solution for 72=f+64 equation:

Simplifying
72 = f + 64

Reorder the terms:
72 = 64 + f

Solving
72 = 64 + f

Solving for variable 'f'.

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

Add '-1f' to each side of the equation.
72 + -1f = 64 + f + -1f

Combine like terms: f + -1f = 0
72 + -1f = 64 + 0
72 + -1f = 64

Add '-72' to each side of the equation.
72 + -72 + -1f = 64 + -72

Combine like terms: 72 + -72 = 0
0 + -1f = 64 + -72
-1f = 64 + -72

Combine like terms: 64 + -72 = -8
-1f = -8

Divide each side by '-1'.
f = 8

Simplifying
f = 8