-7=3a-7+8a

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Solution for -7=3a-7+8a equation: 



-7=3a-7+8a

We move all terms to the left:

-7-(3a-7+8a)=0

We add all the numbers together, and all the variables

-(11a-7)-7=0

We get rid of parentheses

-11a+7-7=0

We add all the numbers together, and all the variables

-11a=0

a=0/-11

a=0

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