7n-15=9-18+8n

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Solution for 7n-15=9-18+8n equation:


Simplifying
7n + -15 = 9 + -18 + 8n

Reorder the terms:
-15 + 7n = 9 + -18 + 8n

Combine like terms: 9 + -18 = -9
-15 + 7n = -9 + 8n

Solving
-15 + 7n = -9 + 8n

Solving for variable 'n'.

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

Add '-8n' to each side of the equation.
-15 + 7n + -8n = -9 + 8n + -8n

Combine like terms: 7n + -8n = -1n
-15 + -1n = -9 + 8n + -8n

Combine like terms: 8n + -8n = 0
-15 + -1n = -9 + 0
-15 + -1n = -9

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

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

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

Divide each side by '-1'.
n = -6

Simplifying
n = -6

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