3j=12-3j

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Solution for 3j=12-3j equation: 



3j=12-3j

We move all terms to the left:

3j-(12-3j)=0

We add all the numbers together, and all the variables

3j-(-3j+12)=0

We get rid of parentheses

3j+3j-12=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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