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5d-7-d=+4
We move all terms to the left:
5d-7-d-(+4)=0
We add all the numbers together, and all the variables
5d-d-7-4=0
We add all the numbers together, and all the variables
4d-11=0
We move all terms containing d to the left, all other terms to the right
4d=11
d=11/4
d=2+3/4
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