4n-9=2n-9+2n

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Solution for 4n-9=2n-9+2n equation: 


Simplifying
4n + -9 = 2n + -9 + 2n

Reorder the terms:
-9 + 4n = 2n + -9 + 2n

Reorder the terms:
-9 + 4n = -9 + 2n + 2n

Combine like terms: 2n + 2n = 4n
-9 + 4n = -9 + 4n

Add '9' to each side of the equation.
-9 + 9 + 4n = -9 + 9 + 4n

Combine like terms: -9 + 9 = 0
0 + 4n = -9 + 9 + 4n
4n = -9 + 9 + 4n

Combine like terms: -9 + 9 = 0
4n = 0 + 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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