-7(d+28)=-21

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Solution for -7(d+28)=-21 equation: 



-7(d+28)=-21

We move all terms to the left:

-7(d+28)-(-21)=0

We add all the numbers together, and all the variables

-7(d+28)+21=0

We multiply parentheses

-7d-196+21=0

We add all the numbers together, and all the variables

-7d-175=0

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

-7d=175

d=175/-7

d=-25

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