3x+15-7x=20-13x+9x-5

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Solution for 3x+15-7x=20-13x+9x-5 equation: 


Simplifying
3x + 15 + -7x = 20 + -13x + 9x + -5

Reorder the terms:
15 + 3x + -7x = 20 + -13x + 9x + -5

Combine like terms: 3x + -7x = -4x
15 + -4x = 20 + -13x + 9x + -5

Reorder the terms:
15 + -4x = 20 + -5 + -13x + 9x

Combine like terms: 20 + -5 = 15
15 + -4x = 15 + -13x + 9x

Combine like terms: -13x + 9x = -4x
15 + -4x = 15 + -4x

Add '-15' to each side of the equation.
15 + -15 + -4x = 15 + -15 + -4x

Combine like terms: 15 + -15 = 0
0 + -4x = 15 + -15 + -4x
-4x = 15 + -15 + -4x

Combine like terms: 15 + -15 = 0
-4x = 0 + -4x
-4x = -4x

Add '4x' to each side of the equation.
-4x + 4x = -4x + 4x

Combine like terms: -4x + 4x = 0
0 = -4x + 4x

Combine like terms: -4x + 4x = 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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