8n-9=7n

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Solution for 8n-9=7n equation:


Simplifying
8n + -9 = 7n

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

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

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

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

Add '9' to each side of the equation.
-9 + 9 + 1n = 0 + 9

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

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

Divide each side by '1'.
n = 9

Simplifying
n = 9

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