2(-6-3D)=3(8+7d)

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Solution for 2(-6-3D)=3(8+7d) equation: 



2(-6-3)=3(8+7D)

We move all terms to the left:

2(-6-3)-(3(8+7D))=0

We add all the numbers together, and all the variables

-(3(7D+8))+2(-9)=0

We add all the numbers together, and all the variables

-(3(7D+8))-18=0



We calculate terms in parentheses: -(3(7D+8)), so:

3(7D+8)

We multiply parentheses

21D+24

Back to the equation:

-(21D+24)



We get rid of parentheses

-21D-24-18=0

We add all the numbers together, and all the variables

-21D-42=0

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

-21D=42

D=42/-21

D=-2

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