8d-42=13(6-9d)

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Solution for 8d-42=13(6-9d) equation: 



8d-42=13(6-9d)

We move all terms to the left:

8d-42-(13(6-9d))=0

We add all the numbers together, and all the variables

8d-(13(-9d+6))-42=0



We calculate terms in parentheses: -(13(-9d+6)), so:

13(-9d+6)

We multiply parentheses

-117d+78

Back to the equation:

-(-117d+78)



We get rid of parentheses

8d+117d-78-42=0

We add all the numbers together, and all the variables

125d-120=0

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

125d=120

d=120/125

d=24/25

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