8n+9=-n

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Solution for 8n+9=-n equation:


Simplifying
8n + 9 = -1n

Reorder the terms:
9 + 8n = -1n

Solving
9 + 8n = -1n

Solving for variable 'n'.

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

Add 'n' to each side of the equation.
9 + 8n + n = -1n + n

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

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

Add '-9' to each side of the equation.
9 + -9 + 9n = 0 + -9

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

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

Divide each side by '9'.
n = -1

Simplifying
n = -1

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