At a meeting of the local computer user group, each member brought two nonmembers. If a total of 27 people attended, how many were members and how many were nonmembers? Choose the correct answer.
A) 10  B) 13  C) 24  D) 22  E) 18
Let x= number of members and 2x= number of non-members   x+ (2x)= 27   3x=27   3x/3=27/3= 
<gadget id="calculator">27/3</gadget>
<output>9</output>
9   The number of non-members is 2x= 2(9)=18 people, the answer is 18)
<result>E</result>
At a meeting of the local computer user group, each member brought two nonmembers. If a total of 27 people attended, how many were members and how many were nonmembers?