document.write( "Question 423985: add:\r
\n" ); document.write( "\n" ); document.write( "(r-8s+7)+(3r+7s)+(s+9)\r
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Algebra.Com's Answer #295630 by linht117(37)\"\" \"About 
You can put this solution on YOUR website!
4r+16 \n" ); document.write( "
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