a-7=2a-7

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Solution for a-7=2a-7 equation: 



a-7=2a-7

We move all terms to the left:

a-7-(2a-7)=0

We get rid of parentheses

a-2a+7-7=0

We add all the numbers together, and all the variables

-a=0

a=0/-1

a=0

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