7(8d-5)=21d+15

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Solution for 7(8d-5)=21d+15 equation: 



7(8d-5)=21d+15

We move all terms to the left:

7(8d-5)-(21d+15)=0

We multiply parentheses

56d-(21d+15)-35=0

We get rid of parentheses

56d-21d-15-35=0

We add all the numbers together, and all the variables

35d-50=0

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

35d=50

d=50/35

d=1+3/7

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