20+20d+20=-5(-4d-8)

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Solution for 20+20d+20=-5(-4d-8) equation: 



20+20d+20=-5(-4d-8)

We move all terms to the left:

20+20d+20-(-5(-4d-8))=0

We add all the numbers together, and all the variables

20d-(-5(-4d-8))+40=0



We calculate terms in parentheses: -(-5(-4d-8)), so:

-5(-4d-8)

We multiply parentheses

20d+40

Back to the equation:

-(20d+40)



We get rid of parentheses

20d-20d-40+40=0

We add all the numbers together, and all the variables

=0

d=0/1

d=0

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