7x+9=7x+9

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


Simplifying
7x + 9 = 7x + 9

Reorder the terms:
9 + 7x = 7x + 9

Reorder the terms:
9 + 7x = 9 + 7x

Add '-9' to each side of the equation.
9 + -9 + 7x = 9 + -9 + 7x

Combine like terms: 9 + -9 = 0
0 + 7x = 9 + -9 + 7x
7x = 9 + -9 + 7x

Combine like terms: 9 + -9 = 0
7x = 0 + 7x
7x = 7x

Add '-7x' to each side of the equation.
7x + -7x = 7x + -7x

Combine like terms: 7x + -7x = 0
0 = 7x + -7x

Combine like terms: 7x + -7x = 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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