2=2(9-2d)

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Solution for 2=2(9-2d) equation: 



2=2(9-2d)

We move all terms to the left:

2-(2(9-2d))=0

We add all the numbers together, and all the variables

-(2(-2d+9))+2=0



We calculate terms in parentheses: -(2(-2d+9)), so:

2(-2d+9)

We multiply parentheses

-4d+18

Back to the equation:

-(-4d+18)



We get rid of parentheses

4d-18+2=0

We add all the numbers together, and all the variables

4d-16=0

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

4d=16

d=16/4

d=4

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