Math please help

1- x/x-5+7x/x^2-3x-10

Please simplfy and show all work thank you

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  1. -x/(x-5) + 7x/(x^2 -3x-10)

    -x/x-5) + 7x (x-5)(x+2)

    The first fraction needs a denominator of (x-5)(x+2)

    Multiply the num and denom by x + 2

    -x^2 -2x +7x = -x^2 +5x num
    over (x-5)(x+2)

    num factor -x(x-5) cancel the x-5

    -x/(x+2)

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