-28+7a=-7+7a+21

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Solution for -28+7a=-7+7a+21 equation: 



-28+7a=-7+7a+21

We move all terms to the left:

-28+7a-(-7+7a+21)=0

We add all the numbers together, and all the variables

7a-(7a+14)-28=0

We get rid of parentheses

7a-7a-14-28=0

We add all the numbers together, and all the variables

-42!=0

There is no solution for this equation

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