3d+20-12d=-20-20d

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Solution for 3d+20-12d=-20-20d equation: 



3d+20-12d=-20-20d

We move all terms to the left:

3d+20-12d-(-20-20d)=0

We add all the numbers together, and all the variables

3d-12d-(-20d-20)+20=0

We add all the numbers together, and all the variables

-9d-(-20d-20)+20=0

We get rid of parentheses

-9d+20d+20+20=0

We add all the numbers together, and all the variables

11d+40=0

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

11d=-40

d=-40/11

d=-3+7/11

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