2x+7=2x-21

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Solution for 2x+7=2x-21 equation: 



2x+7=2x-21

We move all terms to the left:

2x+7-(2x-21)=0

We get rid of parentheses

2x-2x+21+7=0

We add all the numbers together, and all the variables

28!=0

There is no solution for this equation

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