15=-13+4(2d-3)

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Solution for 15=-13+4(2d-3) equation: 



15=-13+4(2d-3)

We move all terms to the left:

15-(-13+4(2d-3))=0



We calculate terms in parentheses: -(-13+4(2d-3)), so:

-13+4(2d-3)

determiningTheFunctionDomain
4(2d-3)-13

We multiply parentheses

8d-12-13

We add all the numbers together, and all the variables

8d-25

Back to the equation:

-(8d-25)



We get rid of parentheses

-8d+25+15=0

We add all the numbers together, and all the variables

-8d+40=0

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

-8d=-40

d=-40/-8

d=+5

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