document.write( "Question 335547: y=-x
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Algebra.Com's Answer #240572 by Fombitz(32388)\"\" \"About 
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1.\"y=-x\"
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\n" ); document.write( "Substitute eq.1 into eq. 2,
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\n" ); document.write( "\"-2x=-3\"
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\n" ); document.write( "Then use eq. 1,
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