4d=7d+15

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Solution for 4d=7d+15 equation: 



4d=7d+15

We move all terms to the left:

4d-(7d+15)=0

We get rid of parentheses

4d-7d-15=0

We add all the numbers together, and all the variables

-3d-15=0

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

-3d=15

d=15/-3

d=-5

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