document.write( "Question 1013367: In a carnival game, you get 5 points for each bull's eye you hit, but you lose 10 points for every miss. After 30 tries, Duy lost 90 points. How many bull's eyes did he have? \n" ); document.write( "
Algebra.Com's Answer #629624 by fractalier(6550)\"\" \"About 
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Call x the number of bull's eyes he got...thus he had 30-x misses...then we write
\n" ); document.write( "5x - 10(30-x) = -90
\n" ); document.write( "5x - 300 + 10x = -90
\n" ); document.write( "15x = 210
\n" ); document.write( "x = 14 bull's eyes
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