(n+4)*9=72

Solution for (n+4)*9=72 equation:

Simplifying
(n + 4) * 9 = 72

Reorder the terms:
(4 + n) * 9 = 72

Reorder the terms for easier multiplication:
9(4 + n) = 72
(4 * 9 + n * 9) = 72
(36 + 9n) = 72

Solving
36 + 9n = 72

Solving for variable 'n'.

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

Add '-36' to each side of the equation.
36 + -36 + 9n = 72 + -36

Combine like terms: 36 + -36 = 0
0 + 9n = 72 + -36
9n = 72 + -36

Combine like terms: 72 + -36 = 36
9n = 36

Divide each side by '9'.
n = 4

Simplifying
n = 4