3(d+3)=39

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Solution for 3(d+3)=39 equation: 



3(d+3)=39

We move all terms to the left:

3(d+3)-(39)=0

We multiply parentheses

3d+9-39=0

We add all the numbers together, and all the variables

3d-30=0

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

3d=30

d=30/3

d=10

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