63=-7(3+d)

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Solution for 63=-7(3+d) equation: 



63=-7(3+d)

We move all terms to the left:

63-(-7(3+d))=0

We add all the numbers together, and all the variables

-(-7(d+3))+63=0



We calculate terms in parentheses: -(-7(d+3)), so:

-7(d+3)

We multiply parentheses

-7d-21

Back to the equation:

-(-7d-21)



We get rid of parentheses

7d+21+63=0

We add all the numbers together, and all the variables

7d+84=0

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

7d=-84

d=-84/7

d=-12

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