document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1103333>Question 1103333</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The score on a trivia game is obtained by subtracting the number of incorrect answer from twice the number of correct answer. If a player answered 50 total question and obtained a score of 40 , how many questions did the player answer correctly? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #718031 by </B><A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><B>algebrahouse.com(1659)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=algebrahouse.com><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=algebrahouse.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=718031\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = number of incorrect answers<BR>\n" );
document.write( "y = number of correct answers\r<BR>\n" );
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document.write( "x + y = 50   {there were 50 total questions}<BR>\n" );
document.write( "2y - x = 40 {subtract incorrect answers from twice correct answers to obtain score}\r<BR>\n" );
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document.write( "x + y = 50 {first equation}<BR>\n" );
document.write( "-x + 2y = 40 {re-arranged second equation}<BR>\n" );
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document.write( "3y = 90 {added the two equations}<BR>\n" );
document.write( "y = 30 {divided each side by 3}\r<BR>\n" );
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document.write( "the player answered 30 questions correctly<BR>\n" );
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