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d/0.13=2.5
We move all terms to the left:
d/0.13-(2.5)=0
We add all the numbers together, and all the variables
d/0.13-2.5=0
We multiply all the terms by the denominator
d-(2.5)*0.13=0
We add all the numbers together, and all the variables
d-0.325=0
We move all terms containing d to the left, all other terms to the right
d=0.325
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