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anonymous
 5 years ago
someone please help
solve simultaneously:
7/x  5/y=3 and 2/x + 25/2y=12
anonymous
 5 years ago
someone please help solve simultaneously: 7/x  5/y=3 and 2/x + 25/2y=12

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0it is easy consider u=1/x and v=1/y, then the equation will become 7u5v=3 4u+25v=24, then multiply the equation one with 5 yu will get 35u25v=15 and add the last two you will get 39u=39 then u=1 and 3515=25v i.e. 20=25v so v=20/25=4/5 then x=1/u, which gives x=1 and y=1/v which is y=5/4
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