-3n+7n=5n-n

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Solution for -3n+7n=5n-n equation: 


Simplifying
-3n + 7n = 5n + -1n

Combine like terms: -3n + 7n = 4n
4n = 5n + -1n

Combine like terms: 5n + -1n = 4n
4n = 4n

Add '-4n' to each side of the equation.
4n + -4n = 4n + -4n

Combine like terms: 4n + -4n = 0
0 = 4n + -4n

Combine like terms: 4n + -4n = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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