d+4d-1=7d+3

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Solution for d+4d-1=7d+3 equation: 



d+4d-1=7d+3

We move all terms to the left:

d+4d-1-(7d+3)=0

We add all the numbers together, and all the variables

5d-(7d+3)-1=0

We get rid of parentheses

5d-7d-3-1=0

We add all the numbers together, and all the variables

-2d-4=0

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

-2d=4

d=4/-2

d=-2

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