0.3(3d+6)=21

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Solution for 0.3(3d+6)=21 equation: 



0.3(3d+6)=21

We move all terms to the left:

0.3(3d+6)-(21)=0

We multiply parentheses

0.9d+1.8-21=0

We add all the numbers together, and all the variables

0.9d-19.2=0

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

0.9d=19.2

d=19.2/0.9

d=21+0.3/0.9

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