8n+(n-5)-9n=2n-15

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Solution for 8n+(n-5)-9n=2n-15 equation:


Simplifying
8n + (n + -5) + -9n = 2n + -15

Reorder the terms:
8n + (-5 + n) + -9n = 2n + -15

Remove parenthesis around (-5 + n)
8n + -5 + n + -9n = 2n + -15

Reorder the terms:
-5 + 8n + n + -9n = 2n + -15

Combine like terms: 8n + n = 9n
-5 + 9n + -9n = 2n + -15

Combine like terms: 9n + -9n = 0
-5 + 0 = 2n + -15
-5 = 2n + -15

Reorder the terms:
-5 = -15 + 2n

Solving
-5 = -15 + 2n

Solving for variable 'n'.

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

Add '-2n' to each side of the equation.
-5 + -2n = -15 + 2n + -2n

Combine like terms: 2n + -2n = 0
-5 + -2n = -15 + 0
-5 + -2n = -15

Add '5' to each side of the equation.
-5 + 5 + -2n = -15 + 5

Combine like terms: -5 + 5 = 0
0 + -2n = -15 + 5
-2n = -15 + 5

Combine like terms: -15 + 5 = -10
-2n = -10

Divide each side by '-2'.
n = 5

Simplifying
n = 5

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