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3.4+d/6.5=8.6
We move all terms to the left:
3.4+d/6.5-(8.6)=0
We add all the numbers together, and all the variables
d/6.5-5.2=0
We multiply all the terms by the denominator
d-(5.2)*6.5=0
We add all the numbers together, and all the variables
d-33.8=0
We move all terms containing d to the left, all other terms to the right
d=33.8
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