-3j-7=-31

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Solution for -3j-7=-31 equation: 



-3j-7=-31

We move all terms to the left:

-3j-7-(-31)=0

We add all the numbers together, and all the variables

-3j+24=0

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

-3j=-24

j=-24/-3

j=+8

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