-21d-20=106

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Solution for -21d-20=106 equation: 



-21d-20=106

We move all terms to the left:

-21d-20-(106)=0

We add all the numbers together, and all the variables

-21d-126=0

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

-21d=126

d=126/-21

d=-6

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