document.write( "Question 252374: The real numbers x and y satisfy the equations y(2x − 3y) = 19 and
\n" ); document.write( " x(3x − 4 y) = 94 . Evaluate |x-y |.
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Algebra.Com's Answer #184269 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
This one appears a bit tricky. We have two equations and two unknowns:
\n" ); document.write( "\"y%282x+-+3y%29+=+19\"
\n" ); document.write( "\"x%283x+-+4y%29+=+94\"\r
\n" ); document.write( "\n" ); document.write( "step 1: divide the first equation by y and the second equation by x.\r
\n" ); document.write( "\n" ); document.write( "\"%282x+-+3y%29+=+19%2Fy\"
\n" ); document.write( "\"%283x+-+4y%29+=+94%2Fx\"\r
\n" ); document.write( "\n" ); document.write( "step 2: multiply the first equation by -1 and add the two equations together.\r
\n" ); document.write( "\n" ); document.write( "\"-2x+%2B+3y+=+-19%2Fy\"
\n" ); document.write( "\"++3x+-+4y+=+94%2Fx\"\r
\n" ); document.write( "\n" ); document.write( "\"x+-+y+=+94%2Fx+-+19%2Fy\"\r
\n" ); document.write( "\n" ); document.write( "step #3: We can take the absolute value of both sides. absolute value (x-y) = 94/x - 19/y\r
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