5n+4n=9n

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Solution for 5n+4n=9n equation: 


Simplifying
5n + 4n = 9n

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

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

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

Combine like terms: 9n + -9n = 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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