8+2d=7

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Solution for 8+2d=7 equation: 



8+2d=7

We move all terms to the left:

8+2d-(7)=0

We add all the numbers together, and all the variables

2d+1=0

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

2d=-1

d=-1/2

d=-1/2

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