n-1+8n=8n-9

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Solution for n-1+8n=8n-9 equation:


Simplifying
n + -1 + 8n = 8n + -9

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

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

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

Solving
-1 + 9n = -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.
-1 + 9n + -8n = -9 + 8n + -8n

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

Combine like terms: 8n + -8n = 0
-1 + 1n = -9 + 0
-1 + 1n = -9

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

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

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

Divide each side by '1'.
n = -8

Simplifying
n = -8

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