2x+3x-15=6+5x-21

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Solution for 2x+3x-15=6+5x-21 equation:


Simplifying
2x + 3x + -15 = 6 + 5x + -21

Reorder the terms:
-15 + 2x + 3x = 6 + 5x + -21

Combine like terms: 2x + 3x = 5x
-15 + 5x = 6 + 5x + -21

Reorder the terms:
-15 + 5x = 6 + -21 + 5x

Combine like terms: 6 + -21 = -15
-15 + 5x = -15 + 5x

Add '15' to each side of the equation.
-15 + 15 + 5x = -15 + 15 + 5x

Combine like terms: -15 + 15 = 0
0 + 5x = -15 + 15 + 5x
5x = -15 + 15 + 5x

Combine like terms: -15 + 15 = 0
5x = 0 + 5x
5x = 5x

Add '-5x' to each side of the equation.
5x + -5x = 5x + -5x

Combine like terms: 5x + -5x = 0
0 = 5x + -5x

Combine like terms: 5x + -5x = 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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