x=21+x=21=2

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



x=21+x=21=2

We move all terms to the left:

x-(21+x)=0

We add all the numbers together, and all the variables

x-(x+21)=0

We get rid of parentheses

x-x-21=0

We add all the numbers together, and all the variables

-21!=0

There is no solution for this equation

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