9-3(n+5)=30

Solution for 9-3(n+5)=30 equation:

Simplifying
9 + -3(n + 5) = 30

Reorder the terms:
9 + -3(5 + n) = 30
9 + (5 * -3 + n * -3) = 30
9 + (-15 + -3n) = 30

Combine like terms: 9 + -15 = -6
-6 + -3n = 30

Solving
-6 + -3n = 30

Solving for variable 'n'.

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

Add '6' to each side of the equation.
-6 + 6 + -3n = 30 + 6

Combine like terms: -6 + 6 = 0
0 + -3n = 30 + 6
-3n = 30 + 6

Combine like terms: 30 + 6 = 36
-3n = 36

Divide each side by '-3'.
n = -12

Simplifying
n = -12