-20-9d=7(8d-3)

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Solution for -20-9d=7(8d-3) equation: 



-20-9d=7(8d-3)

We move all terms to the left:

-20-9d-(7(8d-3))=0



We calculate terms in parentheses: -(7(8d-3)), so:

7(8d-3)

We multiply parentheses

56d-21

Back to the equation:

-(56d-21)



We get rid of parentheses

-9d-56d+21-20=0

We add all the numbers together, and all the variables

-65d+1=0

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

-65d=-1

d=-1/-65

d=1/65

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