3j-81=21

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Solution for 3j-81=21 equation: 



3j-81=21

We move all terms to the left:

3j-81-(21)=0

We add all the numbers together, and all the variables

3j-102=0

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

3j=102

j=102/3

j=34

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