9-3j=-21

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Solution for 9-3j=-21 equation:



9-3j=-21
We move all terms to the left:
9-3j-(-21)=0
We add all the numbers together, and all the variables
-3j+30=0
We move all terms containing j to the left, all other terms to the right
-3j=-30
j=-30/-3
j=+10

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