72=-9n

Solution for 72=-9n equation:

Simplifying
72 = -9n

Solving
72 = -9n

Solving for variable 'n'.

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

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

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

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

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

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

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

Simplifying
n = -8