89=8n+9

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Solution for 89=8n+9 equation:


Simplifying
89 = 8n + 9

Reorder the terms:
89 = 9 + 8n

Solving
89 = 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.
89 + -8n = 9 + 8n + -8n

Combine like terms: 8n + -8n = 0
89 + -8n = 9 + 0
89 + -8n = 9

Add '-89' to each side of the equation.
89 + -89 + -8n = 9 + -89

Combine like terms: 89 + -89 = 0
0 + -8n = 9 + -89
-8n = 9 + -89

Combine like terms: 9 + -89 = -80
-8n = -80

Divide each side by '-8'.
n = 10

Simplifying
n = 10

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