2m+21=2m-1

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Solution for 2m+21=2m-1 equation: 


Simplifying
2m + 21 = 2m + -1

Reorder the terms:
21 + 2m = 2m + -1

Reorder the terms:
21 + 2m = -1 + 2m

Add '-2m' to each side of the equation.
21 + 2m + -2m = -1 + 2m + -2m

Combine like terms: 2m + -2m = 0
21 + 0 = -1 + 2m + -2m
21 = -1 + 2m + -2m

Combine like terms: 2m + -2m = 0
21 = -1 + 0
21 = -1

Solving
21 = -1

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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