12d+18=-30-18d

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Solution for 12d+18=-30-18d equation: 



12d+18=-30-18d

We move all terms to the left:

12d+18-(-30-18d)=0

We add all the numbers together, and all the variables

12d-(-18d-30)+18=0

We get rid of parentheses

12d+18d+30+18=0

We add all the numbers together, and all the variables

30d+48=0

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

30d=-48

d=-48/30

d=-1+3/5

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