2a=21+2a

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Solution for 2a=21+2a equation: 


Simplifying
2a = 21 + 2a

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

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

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

Solving
0 = 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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