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Simplify:1/(x-3)-2/(x+3)+3/(x-3)
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first, the LCD is (x+3)(x-3) so, if we are going to make them all having the same denominator the new form would be. ((x+3)-2(x-3)+3(x+3))/(x-3)(x+3), then distribute. (x+3-2x+6+3x+9)/(x-3)(x+3), combine like terms (2x+18)/(x-3)(x+3)
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