3(d-5)=-21

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Solution for 3(d-5)=-21 equation: 



3(d-5)=-21

We move all terms to the left:

3(d-5)-(-21)=0

We add all the numbers together, and all the variables

3(d-5)+21=0

We multiply parentheses

3d-15+21=0

We add all the numbers together, and all the variables

3d+6=0

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

3d=-6

d=-6/3

d=-2

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