d+1=3(d-3)

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Solution for d+1=3(d-3) equation: 



d+1=3(d-3)

We move all terms to the left:

d+1-(3(d-3))=0



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

3(d-3)

We multiply parentheses

3d-9

Back to the equation:

-(3d-9)



We get rid of parentheses

d-3d+9+1=0

We add all the numbers together, and all the variables

-2d+10=0

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

-2d=-10

d=-10/-2

d=+5

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