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If 1/x + 1/y = 3 and 1/x - 1/y = -7 what is the value of x+y? Express your answer as a common fraction.

 Apr 23, 2022
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Add the two equations and you will get \(\dfrac2x = -4\). Then you can solve for x.

Similarly you can solve for y. Then just add them together.

 Apr 23, 2022

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