document.write( "Question 811486: how many solutions does the system 2x-y=-5 and 2x+y=5 have? \n" ); document.write( "
Algebra.Com's Answer #488763 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
The possibilities are zero, one or infinite
\n" ); document.write( "here it is one
\n" ); document.write( "x = 0, y = 5
\n" ); document.write( "add them
\n" ); document.write( "4x=0
\n" ); document.write( "x=0
\n" ); document.write( "y=5
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