20=-3+4(d-8)

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Solution for 20=-3+4(d-8) equation: 



20=-3+4(d-8)

We move all terms to the left:

20-(-3+4(d-8))=0



We calculate terms in parentheses: -(-3+4(d-8)), so:

-3+4(d-8)

determiningTheFunctionDomain
4(d-8)-3

We multiply parentheses

4d-32-3

We add all the numbers together, and all the variables

4d-35

Back to the equation:

-(4d-35)



We get rid of parentheses

-4d+35+20=0

We add all the numbers together, and all the variables

-4d+55=0

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

-4d=-55

d=-55/-4

d=13+3/4

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