7n+15=5n-9

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Solution for 7n+15=5n-9 equation:


Simplifying
7n + 15 = 5n + -9

Reorder the terms:
15 + 7n = 5n + -9

Reorder the terms:
15 + 7n = -9 + 5n

Solving
15 + 7n = -9 + 5n

Solving for variable 'n'.

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

Add '-5n' to each side of the equation.
15 + 7n + -5n = -9 + 5n + -5n

Combine like terms: 7n + -5n = 2n
15 + 2n = -9 + 5n + -5n

Combine like terms: 5n + -5n = 0
15 + 2n = -9 + 0
15 + 2n = -9

Add '-15' to each side of the equation.
15 + -15 + 2n = -9 + -15

Combine like terms: 15 + -15 = 0
0 + 2n = -9 + -15
2n = -9 + -15

Combine like terms: -9 + -15 = -24
2n = -24

Divide each side by '2'.
n = -12

Simplifying
n = -12

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