7a-(3a+6)=7

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Solution for 7a-(3a+6)=7 equation: 



7a-(3a+6)=7

We move all terms to the left:

7a-(3a+6)-(7)=0

We get rid of parentheses

7a-3a-6-7=0

We add all the numbers together, and all the variables

4a-13=0

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

4a=13

a=13/4

a=3+1/4

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