d/3+15=21

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Solution for d/3+15=21 equation: 



d/3+15=21

We move all terms to the left:

d/3+15-(21)=0

We add all the numbers together, and all the variables

d/3-6=0

We multiply all the terms by the denominator


d-6*3=0

We add all the numbers together, and all the variables

d-18=0

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

d=18

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