f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck. This is a multiple choice question

100,518 results
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  37. Geometry

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  38. Pre calculus

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  44. Inverese of one to one function

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  55. Geometry - Transformations and Dilations

    When a square of area 4 is dilated by a scale factor of k, we obtain a square of area 9. Find the sum of all possible values of k. I do not understand...it is not 3/2, as I was told, but I don't understand why? Help?

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  59. English

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  60. algebra

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  61. More algebra--please help!

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  74. Algebra

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  77. electrodynamics - max radiation angle

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  78. history

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  82. Geometry

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  84. geography Ms. Sue

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  99. MATH URGENT

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  100. math

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