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

12d-15=0

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

12d=15

d=15/12

d=1+1/4

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