2z+21=2z

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Solution for 2z+21=2z equation: 


Simplifying
2z + 21 = 2z

Reorder the terms:
21 + 2z = 2z

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

Combine like terms: 2z + -2z = 0
21 + 0 = 2z + -2z
21 = 2z + -2z

Combine like terms: 2z + -2z = 0
21 = 0

Solving
21 = 0

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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