if E is x1 , E is x2
Fe+2/Fe Fe+3 / Fe

then E will be???
Fe+3/Fe+2

Simply subtract x2-x1. I.e 3F-2F=F(3x2-2x1)

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Dear friends, I hope this method helps u guys

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3x2-2x1 It is Correct Answer So I hope Its Helpfull
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