document.write( "Question 245999: x + y=8 over x - y =-10 \n" ); document.write( "
Algebra.Com's Answer #179686 by mathitutor(25)\"\" \"About 
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x + y = 8 ---(1)
\n" ); document.write( "x - y = -10 ---(2)
\n" ); document.write( "(1) + (2) gives,\r
\n" ); document.write( "\n" ); document.write( "2x = -2 => x = -1
\n" ); document.write( "put the value of x in 1, -1 + y = 8
\n" ); document.write( "=> y = 8 + 1 = 9
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