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j/2+-1=-3
We move all terms to the left:
j/2+-1-(-3)=0
We add all the numbers together, and all the variables
j/2+2=0
We multiply all the terms by the denominator
j+2*2=0
We add all the numbers together, and all the variables
j+4=0
We move all terms containing j to the left, all other terms to the right
j=-4
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