8d+d=9

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Solution for 8d+d=9 equation:



8d+d=9
We move all terms to the left:
8d+d-(9)=0
We add all the numbers together, and all the variables
9d-9=0
We move all terms containing d to the left, all other terms to the right
9d=9
d=9/9
d=1

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