a-(-7a-3)=0

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Solution for a-(-7a-3)=0 equation: 



a-(-7a-3)=0

We get rid of parentheses

a+7a+3=0

We add all the numbers together, and all the variables

8a+3=0

We move all terms containing a to the left, all other terms to the right

8a=-3

a=-3/8

a=-3/8

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