-1d-1=221+2d

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Solution for -1d-1=221+2d equation: 



-1d-1=221+2d

We move all terms to the left:

-1d-1-(221+2d)=0

We add all the numbers together, and all the variables

-1d-(2d+221)-1=0

We get rid of parentheses

-1d-2d-221-1=0

We add all the numbers together, and all the variables

-3d-222=0

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

-3d=222

d=222/-3

d=-74

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