3j+9=30

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Solution for 3j+9=30 equation:



3j+9=30
We move all terms to the left:
3j+9-(30)=0
We add all the numbers together, and all the variables
3j-21=0
We move all terms containing j to the left, all other terms to the right
3j=21
j=21/3
j=7

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