3(d+7)=78

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Solution for 3(d+7)=78 equation: 



3(d+7)=78

We move all terms to the left:

3(d+7)-(78)=0

We multiply parentheses

3d+21-78=0

We add all the numbers together, and all the variables

3d-57=0

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

3d=57

d=57/3

d=19

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