9-3n+15=30

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Solution for 9-3n+15=30 equation: 


Simplifying
9 + -3n + 15 = 30

Reorder the terms:
9 + 15 + -3n = 30

Combine like terms: 9 + 15 = 24
24 + -3n = 30

Solving
24 + -3n = 30

Solving for variable 'n'.

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

Add '-24' to each side of the equation.
24 + -24 + -3n = 30 + -24

Combine like terms: 24 + -24 = 0
0 + -3n = 30 + -24
-3n = 30 + -24

Combine like terms: 30 + -24 = 6
-3n = 6

Divide each side by '-3'.
n = -2

Simplifying
n = -2

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