9=0.2(3d+2.1)

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Solution for 9=0.2(3d+2.1) equation: 



9=0.2(3d+2.1)

We move all terms to the left:

9-(0.2(3d+2.1))=0



We calculate terms in parentheses: -(0.2(3d+2.1)), so:

0.2(3d+2.1)

We multiply parentheses

0.6d+0.42

Back to the equation:

-(0.6d+0.42)



We get rid of parentheses

-0.6d-0.42+9=0

We add all the numbers together, and all the variables

-0.6d+8.58=0

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

-0.6d=-8.58

d=-8.58/-0.6

d=14+0.18/0.6

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