3d(10d+7)=3d(10d+14)

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Solution for 3d(10d+7)=3d(10d+14) equation: 



3d(10d+7)=3d(10d+14)

We move all terms to the left:

3d(10d+7)-(3d(10d+14))=0

We multiply parentheses

30d^2+21d-(3d(10d+14))=0



We calculate terms in parentheses: -(3d(10d+14)), so:

3d(10d+14)

We multiply parentheses

30d^2+42d

Back to the equation:

-(30d^2+42d)



We get rid of parentheses

30d^2-30d^2+21d-42d=0

We add all the numbers together, and all the variables

-21d=0

d=0/-21

d=0

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