-2d-9=-84+9

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Solution for -2d-9=-84+9 equation: 



-2d-9=-84+9

We move all terms to the left:

-2d-9-(-84+9)=0

We add all the numbers together, and all the variables

-2d-9-(-75)=0

We add all the numbers together, and all the variables

-2d+66=0

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

-2d=-66

d=-66/-2

d=+33

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