7d+d-4d+7=5

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Solution for 7d+d-4d+7=5 equation: 



7d+d-4d+7=5

We move all terms to the left:

7d+d-4d+7-(5)=0

We add all the numbers together, and all the variables

4d+2=0

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

4d=-2

d=-2/4

d=-1/2

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