9=2(a+7)

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Solution for 9=2(a+7) equation: 



9=2(a+7)

We move all terms to the left:

9-(2(a+7))=0



We calculate terms in parentheses: -(2(a+7)), so:

2(a+7)

We multiply parentheses

2a+14

Back to the equation:

-(2a+14)



We get rid of parentheses

-2a-14+9=0

We add all the numbers together, and all the variables

-2a-5=0

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

-2a=5

a=5/-2

a=-2+1/2

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