document.write( "Question 245999: x + y=8 over x - y =-10 \n" ); document.write( "

Algebra.Com's Answer #179685 by ripplemehta(3) $\"\"$ $\"About$

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x+y=8
\n" ); document.write( "x-y=-10
\n" ); document.write( "adding the two equations we get
\n" ); document.write( "2x=-2
\n" ); document.write( "x=-1
\n" ); document.write( "so x+y=8
\n" ); document.write( "y=8-x
\n" ); document.write( "y=8-(-1)=8+1=9
\n" ); document.write( "solution set(-1,9) \n" ); document.write( "

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