document.write( "Question 957804: Solve the following equation\r
\n" ); document.write( "\n" ); document.write( "2/x-7/y=9/10
\n" ); document.write( "5/x+4/y=-41/20 \n" ); document.write( "
Algebra.Com's Answer #585444 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Solve the following system of equations::
\n" ); document.write( "2/x-7/y=9/10
\n" ); document.write( " 5/x+4/y=-41/20
\n" ); document.write( "--------
\n" ); document.write( "Let X = 1/x
\n" ); document.write( "Let Y = 1/y
\n" ); document.write( "----------
\n" ); document.write( "2X - 7Y = 9/10
\n" ); document.write( "5X + 4Y = -41/20
\n" ); document.write( "-------
\n" ); document.write( "Modify for elimination::
\n" ); document.write( "10X - 35Y = 45/10
\n" ); document.write( "10X + 8Y = -82/20
\n" ); document.write( "-------------------------
\n" ); document.write( "Subtract and sove for \"Y\":
\n" ); document.write( "43Y = -82/20-90/20
\n" ); document.write( "43Y = -172/20
\n" ); document.write( "Y = -4/20 = -1/5
\n" ); document.write( "------
\n" ); document.write( "Solve for \"X\":
\n" ); document.write( "2X - 7Y = 9/10
\n" ); document.write( "2X -(7(-1/5) = 9/10
\n" ); document.write( "2X + 14/10 = 9/10
\n" ); document.write( "2X = -1/2
\n" ); document.write( "X = -1/4
\n" ); document.write( "---
\n" ); document.write( "Since X = 1/x, x = -4
\n" ); document.write( "Since Y = 1/y, y = -5
\n" ); document.write( "----------------------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "------------- \n" ); document.write( "
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