7n+15=n-9

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Solution for 7n+15=n-9 equation:


Simplifying
7n + 15 = n + -9

Reorder the terms:
15 + 7n = n + -9

Reorder the terms:
15 + 7n = -9 + n

Solving
15 + 7n = -9 + n

Solving for variable 'n'.

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

Add '-1n' to each side of the equation.
15 + 7n + -1n = -9 + n + -1n

Combine like terms: 7n + -1n = 6n
15 + 6n = -9 + n + -1n

Combine like terms: n + -1n = 0
15 + 6n = -9 + 0
15 + 6n = -9

Add '-15' to each side of the equation.
15 + -15 + 6n = -9 + -15

Combine like terms: 15 + -15 = 0
0 + 6n = -9 + -15
6n = -9 + -15

Combine like terms: -9 + -15 = -24
6n = -24

Divide each side by '6'.
n = -4

Simplifying
n = -4

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