2x+21=2x+20

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Solution for 2x+21=2x+20 equation:


Simplifying
2x + 21 = 2x + 20

Reorder the terms:
21 + 2x = 2x + 20

Reorder the terms:
21 + 2x = 20 + 2x

Add '-2x' to each side of the equation.
21 + 2x + -2x = 20 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 + 0 = 20 + 2x + -2x
21 = 20 + 2x + -2x

Combine like terms: 2x + -2x = 0
21 = 20 + 0
21 = 20

Solving
21 = 20

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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