document.write( "Question 892255: In a survey of a TriDelt chapter with 50 members, 21 were taking mathematics, 30 were taking English, and 6 were taking both. How many were not taking either of these subjects?
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Algebra.Com's Answer #540449 by LinnW(1048)\"\" \"About 
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21 + 30 - 6 = 45 , the number taking english or mathematics
\n" ); document.write( "The subtraction of 6 avoids double counting.
\n" ); document.write( "Since there are 50 chapter members, 50 - 45 = 5 gives
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