7d=15+5d

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Solution for 7d=15+5d equation: 



7d=15+5d

We move all terms to the left:

7d-(15+5d)=0

We add all the numbers together, and all the variables

7d-(5d+15)=0

We get rid of parentheses

7d-5d-15=0

We add all the numbers together, and all the variables

2d-15=0

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

2d=15

d=15/2

d=7+1/2

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