document.write( "Question 339195: Number Set: 11, 9, 18, 24, 8, 14\r
\n" ); document.write( "\n" ); document.write( "- What number do you need to add to the set to make the mean equal to 15?\r
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Algebra.Com's Answer #243116 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
(11+9+18+24+8+14+x)/7=15
\n" ); document.write( "84+x=15*7
\n" ); document.write( "84+x=105
\n" ); document.write( "x=21
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