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OpenStudy (anonymous):
Solve for x and y: 1/x+1/y=5 and 5/x-2/y=4
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OpenStudy (anonymous):
x=1/2 and y=1/3
OpenStudy (anonymous):
how'd you get that?
OpenStudy (anonymous):
clearly from the first we have 5/x +5/y =25 now also we have 5/x-2/y =4 subtracting above 2 eqs. we have 7/y =21 or y=1/3 hence putting the value of y in any eqs we have x=1/2
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