3x+9-9x=18-13x+7x-9

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Solution for 3x+9-9x=18-13x+7x-9 equation:


Simplifying
3x + 9 + -9x = 18 + -13x + 7x + -9

Reorder the terms:
9 + 3x + -9x = 18 + -13x + 7x + -9

Combine like terms: 3x + -9x = -6x
9 + -6x = 18 + -13x + 7x + -9

Reorder the terms:
9 + -6x = 18 + -9 + -13x + 7x

Combine like terms: 18 + -9 = 9
9 + -6x = 9 + -13x + 7x

Combine like terms: -13x + 7x = -6x
9 + -6x = 9 + -6x

Add '-9' to each side of the equation.
9 + -9 + -6x = 9 + -9 + -6x

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

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

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

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

Combine like terms: -6x + 6x = 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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