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4/7k=-84
We move all terms to the left:
4/7k-(-84)=0
Domain of the equation: 7k!=0We add all the numbers together, and all the variables
k!=0/7
k!=0
k∈R
4/7k+84=0
We multiply all the terms by the denominator
84*7k+4=0
Wy multiply elements
588k+4=0
We move all terms containing k to the left, all other terms to the right
588k=-4
k=-4/588
k=-1/147
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