72=y*9

Solution for 72=y*9 equation:

Simplifying
72 = y * 9

Reorder the terms for easier multiplication:
72 = 9y

Solving
72 = 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
72 + -9y = 9y + -9y

Combine like terms: 9y + -9y = 0
72 + -9y = 0

Add '-72' to each side of the equation.
72 + -72 + -9y = 0 + -72

Combine like terms: 72 + -72 = 0
0 + -9y = 0 + -72
-9y = 0 + -72

Combine like terms: 0 + -72 = -72
-9y = -72

Divide each side by '-9'.
y = 8

Simplifying
y = 8