8n+9=9n-7

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


Simplifying
8n + 9 = 9n + -7

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

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

Solving
9 + 8n = -7 + 9n

Solving for variable 'n'.

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

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

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

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

Add '-9' to each side of the equation.
9 + -9 + -1n = -7 + -9

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

Combine like terms: -7 + -9 = -16
-1n = -16

Divide each side by '-1'.
n = 16

Simplifying
n = 16

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