5n+4n=8n-7

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Solution for 5n+4n=8n-7 equation: 


Simplifying
5n + 4n = 8n + -7

Combine like terms: 5n + 4n = 9n
9n = 8n + -7

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

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

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

Combine like terms: 8n + -8n = 0
1n = -7 + 0
1n = -7

Divide each side by '1'.
n = -7

Simplifying
n = -7

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