2x-21=2x+7

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Solution for 2x-21=2x+7 equation: 


Simplifying
2x + -21 = 2x + 7

Reorder the terms:
-21 + 2x = 2x + 7

Reorder the terms:
-21 + 2x = 7 + 2x

Add '-2x' to each side of the equation.
-21 + 2x + -2x = 7 + 2x + -2x

Combine like terms: 2x + -2x = 0
-21 + 0 = 7 + 2x + -2x
-21 = 7 + 2x + -2x

Combine like terms: 2x + -2x = 0
-21 = 7 + 0
-21 = 7

Solving
-21 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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