(n-9)*5=30

Solution for (n-9)*5=30 equation:

Simplifying
(n + -9) * 5 = 30

Reorder the terms:
(-9 + n) * 5 = 30

Reorder the terms for easier multiplication:
5(-9 + n) = 30
(-9 * 5 + n * 5) = 30
(-45 + 5n) = 30

Solving
-45 + 5n = 30

Solving for variable 'n'.

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

Add '45' to each side of the equation.
-45 + 45 + 5n = 30 + 45

Combine like terms: -45 + 45 = 0
0 + 5n = 30 + 45
5n = 30 + 45

Combine like terms: 30 + 45 = 75
5n = 75

Divide each side by '5'.
n = 15

Simplifying
n = 15