15d-9d=12

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Solution for 15d-9d=12 equation:



15d-9d=12
We move all terms to the left:
15d-9d-(12)=0
We add all the numbers together, and all the variables
6d-12=0
We move all terms containing d to the left, all other terms to the right
6d=12
d=12/6
d=2

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