-19d+7d=12

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Solution for -19d+7d=12 equation: 



-19d+7d=12

We move all terms to the left:

-19d+7d-(12)=0

We add all the numbers together, and all the variables

-12d-12=0

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

-12d=12

d=12/-12

d=-1

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