7d+4=20-3d

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Solution for 7d+4=20-3d equation: 



7d+4=20-3d

We move all terms to the left:

7d+4-(20-3d)=0

We add all the numbers together, and all the variables

7d-(-3d+20)+4=0

We get rid of parentheses

7d+3d-20+4=0

We add all the numbers together, and all the variables

10d-16=0

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

10d=16

d=16/10

d=1+3/5

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