4n+5n+15=n+7n

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Solution for 4n+5n+15=n+7n equation:


Simplifying
4n + 5n + 15 = n + 7n

Reorder the terms:
15 + 4n + 5n = n + 7n

Combine like terms: 4n + 5n = 9n
15 + 9n = n + 7n

Combine like terms: n + 7n = 8n
15 + 9n = 8n

Solving
15 + 9n = 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.
15 + 9n + -8n = 8n + -8n

Combine like terms: 9n + -8n = 1n
15 + 1n = 8n + -8n

Combine like terms: 8n + -8n = 0
15 + 1n = 0

Add '-15' to each side of the equation.
15 + -15 + 1n = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 1n = 0 + -15
1n = 0 + -15

Combine like terms: 0 + -15 = -15
1n = -15

Divide each side by '1'.
n = -15

Simplifying
n = -15

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