document.write( "Question 1008531: 1/x+1/y=5
\n" ); document.write( "2/x+3/y=13 \n" ); document.write( "

Algebra.Com's Answer #624566 by fractalier(6550) $\"\"$ $\"About$

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From
\n" ); document.write( "1/x + 1/y = 5
\n" ); document.write( "2/x + 3/y = 13
\n" ); document.write( "double the first one and subtract it from the second and get
\n" ); document.write( "2/x + 3/y = 13
\n" ); document.write( "-(2/x + 2/y = 10)
\n" ); document.write( "-----------------
\n" ); document.write( "1/y = 3
\n" ); document.write( "so that y = 1/3 and then
\n" ); document.write( "1/x + 3 = 5
\n" ); document.write( "1/x = 2
\n" ); document.write( "x = 1/2
\n" ); document.write( "(1/2 , 1/3) \n" ); document.write( "

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