-9=-9-8n

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


Simplifying
-9 = -9 + -8n

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

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

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

Solving
0 = -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.
0 + 8n = -8n + 8n
Remove the zero:
8n = -8n + 8n

Combine like terms: -8n + 8n = 0
8n = 0

Divide each side by '8'.
n = 0

Simplifying
n = 0

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