3d+3=6d-18

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Solution for 3d+3=6d-18 equation: 



3d+3=6d-18

We move all terms to the left:

3d+3-(6d-18)=0

We get rid of parentheses

3d-6d+18+3=0

We add all the numbers together, and all the variables

-3d+21=0

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

-3d=-21

d=-21/-3

d=+7

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