x*x+6x=9+6x+x*x-9

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Solution for x*x+6x=9+6x+x*x-9 equation: 


Simplifying
x * x + 6x = 9 + 6x + x * x + -9

Multiply x * x
x2 + 6x = 9 + 6x + x * x + -9

Reorder the terms:
6x + x2 = 9 + 6x + x * x + -9

Multiply x * x
6x + x2 = 9 + 6x + x2 + -9

Reorder the terms:
6x + x2 = 9 + -9 + 6x + x2

Combine like terms: 9 + -9 = 0
6x + x2 = 0 + 6x + x2
6x + x2 = 6x + x2

Add '-6x' to each side of the equation.
6x + -6x + x2 = 6x + -6x + x2

Combine like terms: 6x + -6x = 0
0 + x2 = 6x + -6x + x2
x2 = 6x + -6x + x2

Combine like terms: 6x + -6x = 0
x2 = 0 + x2
x2 = x2

Add '-1x2' to each side of the equation.
x2 + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
0 = x2 + -1x2

Combine like terms: x2 + -1x2 = 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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