document.write( "Question 121424: Solve the system by addition\r
\n" ); document.write( "\n" ); document.write( "x+y=1
\n" ); document.write( "x-y=3
\n" ); document.write( "

Algebra.Com's Answer #89092 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
X+Y=1
\n" ); document.write( "X-Y=3 NOW ADD
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\n" ); document.write( "2X=4
\n" ); document.write( "X=4/2
\n" ); document.write( "X=2 ANSWER.
\n" ); document.write( "2+Y=1
\n" ); document.write( "Y=1-2
\n" ); document.write( "Y=-1 ANSWER.
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