2d-39=45

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Solution for 2d-39=45 equation: 



2d-39=45

We move all terms to the left:

2d-39-(45)=0

We add all the numbers together, and all the variables

2d-84=0

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

2d=84

d=84/2

d=42

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