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j/2+2=-1
We move all terms to the left:
j/2+2-(-1)=0
We add all the numbers together, and all the variables
j/2+3=0
We multiply all the terms by the denominator
j+3*2=0
We add all the numbers together, and all the variables
j+6=0
We move all terms containing j to the left, all other terms to the right
j=-6
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