9d+(-30)=15

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Solution for 9d+(-30)=15 equation: 



9d+(-30)=15

We move all terms to the left:

9d+(-30)-(15)=0

determiningTheFunctionDomain
9d-15+(-30)=0

We add all the numbers together, and all the variables

9d-45=0

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

9d=45

d=45/9

d=5

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