7.5d-7-2.5=18.5

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Solution for 7.5d-7-2.5=18.5 equation: 



7.5d-7-2.5=18.5

We move all terms to the left:

7.5d-7-2.5-(18.5)=0

We add all the numbers together, and all the variables

7.5d-28=0

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

7.5d=28

d=28/7.5

d=3+3.6666666666667/5

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