a+72=5a

Solution for a+72=5a equation:

Simplifying
a + 72 = 5a

Reorder the terms:
72 + a = 5a

Solving
72 + a = 5a

Solving for variable 'a'.

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

Add '-5a' to each side of the equation.
72 + a + -5a = 5a + -5a

Combine like terms: a + -5a = -4a
72 + -4a = 5a + -5a

Combine like terms: 5a + -5a = 0
72 + -4a = 0

Add '-72' to each side of the equation.
72 + -72 + -4a = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -4a = 0 + -72
-4a = 0 + -72

Combine like terms: 0 + -72 = -72
-4a = -72

Divide each side by '-4'.
a = 18

Simplifying
a = 18