-207=-9(a+7)

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Solution for -207=-9(a+7) equation: 



-207=-9(a+7)

We move all terms to the left:

-207-(-9(a+7))=0



We calculate terms in parentheses: -(-9(a+7)), so:

-9(a+7)

We multiply parentheses

-9a-63

Back to the equation:

-(-9a-63)



We get rid of parentheses

9a+63-207=0

We add all the numbers together, and all the variables

9a-144=0

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

9a=144

a=144/9

a=16

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