3d+-7d=20

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Solution for 3d+-7d=20 equation: 



3d+-7d=20

We move all terms to the left:

3d+-7d-(20)=0

determiningTheFunctionDomain
3d-7d-20+=0

We add all the numbers together, and all the variables

-4d=0

d=0/-4

d=0

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