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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

8a-(-1a+15)-(6(a+7)+15)=0

We get rid of parentheses

8a+1a-(6(a+7)+15)-15=0



We calculate terms in parentheses: -(6(a+7)+15), so:

6(a+7)+15

We multiply parentheses

6a+42+15

We add all the numbers together, and all the variables

6a+57

Back to the equation:

-(6a+57)



We add all the numbers together, and all the variables

9a-(6a+57)-15=0

We get rid of parentheses

9a-6a-57-15=0

We add all the numbers together, and all the variables

3a-72=0

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

3a=72

a=72/3

a=24

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