8a-(15-a)=6(9-7)=15

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Solution for 8a-(15-a)=6(9-7)=15 equation: 



8a-(15-a)=6(9-7)=15

We move all terms to the left:

8a-(15-a)-(6(9-7))=0

We add all the numbers together, and all the variables

8a-(-1a+15)-(62)=0

We add all the numbers together, and all the variables

8a-(-1a+15)-62=0

We get rid of parentheses

8a+1a-15-62=0

We add all the numbers together, and all the variables

9a-77=0

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

9a=77

a=77/9

a=8+5/9

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