document.write( "Question 45815: solve by substitution\r
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Algebra.Com's Answer #30417 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
X+Y=-9 OR X=-9-Y THEN -9-Y-Y=14 OR -9-2Y=14 OR -2Y=14+9 OR -2Y=23 Y=23/-2 OR Y=-11.5 THEN\r
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