-2(d-4)=-20

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Solution for -2(d-4)=-20 equation: 



-2(d-4)=-20

We move all terms to the left:

-2(d-4)-(-20)=0

We add all the numbers together, and all the variables

-2(d-4)+20=0

We multiply parentheses

-2d+8+20=0

We add all the numbers together, and all the variables

-2d+28=0

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

-2d=-28

d=-28/-2

d=+14

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