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First we must consider for which values of x the equation: 3/(x+3) = (x-4)/x is undefined. In this case, x=-3, and x=0. 

Now we must consider each of the cases, x<-3, -3<x<0, 0&l...

When writing to persuade, you need both fact and opinion. You need to offer your opinion and then present facts that give your opinion basis.