-21=2+8(d+3)

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Solution for -21=2+8(d+3) equation: 



-21=2+8(d+3)

We move all terms to the left:

-21-(2+8(d+3))=0



We calculate terms in parentheses: -(2+8(d+3)), so:

2+8(d+3)

determiningTheFunctionDomain
8(d+3)+2

We multiply parentheses

8d+24+2

We add all the numbers together, and all the variables

8d+26

Back to the equation:

-(8d+26)



We get rid of parentheses

-8d-26-21=0

We add all the numbers together, and all the variables

-8d-47=0

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

-8d=47

d=47/-8

d=-5+7/8

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