3d+15d-12=-12-d

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Solution for 3d+15d-12=-12-d equation: 



3d+15d-12=-12-d

We move all terms to the left:

3d+15d-12-(-12-d)=0

We add all the numbers together, and all the variables

3d+15d-(-1d-12)-12=0

We add all the numbers together, and all the variables

18d-(-1d-12)-12=0

We get rid of parentheses

18d+1d+12-12=0

We add all the numbers together, and all the variables

19d=0

d=0/19

d=0

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