2b-2b+7=21

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


Simplifying
2b + -2b + 7 = 21

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

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

Solving
7 = 21

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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