document.write( "Question 319292: x-y=4
\n" ); document.write( "x+y=2 \n" ); document.write( "

Algebra.Com's Answer #228613 by mananth(16946) $\"\"$ $\"About$

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x-y=4
\n" ); document.write( "x+y=2
\n" ); document.write( "..
\n" ); document.write( "add up the two equations
\n" ); document.write( "x-y+x+y=4+2
\n" ); document.write( "2x=6
\n" ); document.write( "dvide the equation by 2
\n" ); document.write( "2x/2 = 6/2
\n" ); document.write( "x=3
\n" ); document.write( "..
\n" ); document.write( "x+y=4
\n" ); document.write( "plug the value ofx in the equation
\n" ); document.write( "3+y=2
\n" ); document.write( "y=2-3
\n" ); document.write( "y=-1 \n" ); document.write( "

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