document.write( "Question 23043: Please help me solve this problem:\r
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Algebra.Com's Answer #11458 by NaiXLG(18)\"\" \"About 
You can put this solution on YOUR website!
Just simply add like terms\r
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\n" ); document.write( "\n" ); document.write( "x + y + y - z = x + 2y - z
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