document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182970>Question 182970</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a Mathematics contest, a contestant was awarded 6 points for each correct answer but had 4 points deducted for each incorrect answer.After answering 20 questions, Meina earned 40 points. How many questions did she answer correctly?\r<BR>\n" );
document.write( "\n" );
document.write( "(algebra method / Guess and check is not allow) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #137357 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=137357\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = number of correct of answers<BR>\n" );
document.write( "then <BR>\n" );
document.write( "20-x = number of incorrect answers<BR>\n" );
document.write( ".<BR>\n" );
document.write( "6x - 4(20-x) = 40<BR>\n" );
document.write( "6x - 80 + 4x = 40<BR>\n" );
document.write( "10x - 80 = 40<BR>\n" );
document.write( "10x = 120<BR>\n" );
document.write( "x = 12  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );