-2(5d-7)=20

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Solution for -2(5d-7)=20 equation: 



-2(5d-7)=20

We move all terms to the left:

-2(5d-7)-(20)=0

We multiply parentheses

-10d+14-20=0

We add all the numbers together, and all the variables

-10d-6=0

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

-10d=6

d=6/-10

d=-3/5

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