20=3.14d

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Solution for 20=3.14d equation: 



20=3.14d

We move all terms to the left:

20-(3.14d)=0

We add all the numbers together, and all the variables

-(+3.14d)+20=0

We get rid of parentheses

-3.14d+20=0

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

-3.14d=-20

d=-20/-3.14

d=6+1/2.7068965517241

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