7x+12-9x=15-15x+13x-3

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Solution for 7x+12-9x=15-15x+13x-3 equation: 


Simplifying
7x + 12 + -9x = 15 + -15x + 13x + -3

Reorder the terms:
12 + 7x + -9x = 15 + -15x + 13x + -3

Combine like terms: 7x + -9x = -2x
12 + -2x = 15 + -15x + 13x + -3

Reorder the terms:
12 + -2x = 15 + -3 + -15x + 13x

Combine like terms: 15 + -3 = 12
12 + -2x = 12 + -15x + 13x

Combine like terms: -15x + 13x = -2x
12 + -2x = 12 + -2x

Add '-12' to each side of the equation.
12 + -12 + -2x = 12 + -12 + -2x

Combine like terms: 12 + -12 = 0
0 + -2x = 12 + -12 + -2x
-2x = 12 + -12 + -2x

Combine like terms: 12 + -12 = 0
-2x = 0 + -2x
-2x = -2x

Add '2x' to each side of the equation.
-2x + 2x = -2x + 2x

Combine like terms: -2x + 2x = 0
0 = -2x + 2x

Combine like terms: -2x + 2x = 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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