7x+2x=9x

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Solution for 7x+2x=9x equation: 


Simplifying
7x + 2x = 9x

Combine like terms: 7x + 2x = 9x
9x = 9x

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

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

Combine like terms: 9x + -9x = 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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