3j-4+2j+j=8

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Solution for 3j-4+2j+j=8 equation: 



3j-4+2j+j=8

We move all terms to the left:

3j-4+2j+j-(8)=0

We add all the numbers together, and all the variables

6j-12=0

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

6j=12

j=12/6

j=2

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