-8n+9=-7n-9

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


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

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

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

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

Solving for variable 'n'.

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

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

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

Combine like terms: -7n + 7n = 0
9 + -1n = -9 + 0
9 + -1n = -9

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

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

Combine like terms: -9 + -9 = -18
-1n = -18

Divide each side by '-1'.
n = 18

Simplifying
n = 18

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