-30=-2(5d-9)

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Solution for -30=-2(5d-9) equation: 



-30=-2(5d-9)

We move all terms to the left:

-30-(-2(5d-9))=0



We calculate terms in parentheses: -(-2(5d-9)), so:

-2(5d-9)

We multiply parentheses

-10d+18

Back to the equation:

-(-10d+18)



We get rid of parentheses

10d-18-30=0

We add all the numbers together, and all the variables

10d-48=0

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

10d=48

d=48/10

d=4+4/5

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