-21=d/31

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Solution for -21=d/31 equation: 



-21=d/31

We move all terms to the left:

-21-(d/31)=0

We add all the numbers together, and all the variables

-(+d/31)-21=0

We get rid of parentheses

-d/31-21=0

We multiply all the terms by the denominator


-d-21*31=0

We add all the numbers together, and all the variables

-1d-651=0

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

-d=651

d=651/-1

d=-651

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