3/1(3d+6)=21

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Solution for 3/1(3d+6)=21 equation: 



3/1(3d+6)=21

We move all terms to the left:

3/1(3d+6)-(21)=0



Domain of the equation: 1(3d+6)!=0

d∈R



We multiply all the terms by the denominator


-21*1(3d+6)+3=0

Wy multiply elements

-21d(3+3=0

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