document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=669852>Question 669852</A>: <I><SPAN STYLE=\"word-break: break-all;\"> One week, Mr. Slade promised to pay his son Joel $5 for each algebra problem he solved correctly. However, he would charge Joel $2 for each incorrect solution. At the end of the week Joel had completed 82 problems. Mr. Slade owes Joel $25. How many problems did Joel solve correctly.\r<BR>\n" );
document.write( "\n" );
document.write( "I started by doing this but I cannot get an even number answer(C=Correct, I=Incorrect)<BR>\n" );
document.write( "C+I=82<BR>\n" );
document.write( "C(5)-I(2)=25<BR>\n" );
document.write( "I=82-C<BR>\n" );
document.write( "C(5)-(82-C)*2=25.<BR>\n" );
document.write( "5C-(164-10C)=25<BR>\n" );
document.write( "5C-164+10C=25<BR>\n" );
document.write( "15C-164=25<BR>\n" );
document.write( "+164     +164<BR>\n" );
document.write( "15C=189<BR>\n" );
document.write( "c=12.6<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #416592 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=416592\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+ ALIGN=MIDDLE  ALT=\"+c+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the number of correct solutions<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+i+ ALIGN=MIDDLE  ALT=\"+i+\"   DISABLED_style= \"max-width:90%; height:auto;\" > = the number of incorrect solutions<BR>\n" );
document.write( "--------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+%2B+i+=+82+ ALIGN=MIDDLE  ALT=\"+c+%2B+i+=+82+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+i+=+82+-+c+ ALIGN=MIDDLE  ALT=\"+i+=+82+-+c+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5c+-+2i++=+25+ ALIGN=MIDDLE  ALT=\"+5c+-+2i++=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5c+-2%2A%28+82+-+c+%29+=+25+ ALIGN=MIDDLE  ALT=\"+5c+-2%2A%28+82+-+c+%29+=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+5c+-+164+%2B+2c+=+25+ ALIGN=MIDDLE  ALT=\"+5c+-+164+%2B+2c+=+25+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+7c+=+189+ ALIGN=MIDDLE  ALT=\"+7c+=+189+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+c+=+27+ ALIGN=MIDDLE  ALT=\"+c+=+27+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+i+=+82+-+c+ ALIGN=MIDDLE  ALT=\"+i+=+82+-+c+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+i+=+82+-+27+ ALIGN=MIDDLE  ALT=\"+i+=+82+-+27+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+i+=+55+ ALIGN=MIDDLE  ALT=\"+i+=+55+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "He solved 27 correctly<BR>\n" );
document.write( "------------<BR>\n" );
document.write( "Your mistake is the 6th line from the end<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+10c+ ALIGN=MIDDLE  ALT=\"+10c+\"   DISABLED_style= \"max-width:90%; height:auto;\" > should be <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+2c+ ALIGN=MIDDLE  ALT=\"+2c+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );