document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=452378>Question 452378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of a student's three scores is 228. If the first is 21 points more than the second, and the sum<BR>\n" );
document.write( "of the first two is 3 more than twice the third, what was the first score? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #311064 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=311064\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The sum of a student's three scores is 228.<BR>\n" );
document.write( "a + b + c = 228<BR>\n" );
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document.write( " If the first is 21 points more than the second, <BR>\n" );
document.write( "a = b + 21<BR>\n" );
document.write( "or<BR>\n" );
document.write( "a - b = 21; will use this for elimination<BR>\n" );
document.write( ":<BR>\n" );
document.write( "the sum of the first two is 3 more than twice the third,<BR>\n" );
document.write( "a + b = 2c + 3<BR>\n" );
document.write( ":<BR>\n" );
document.write( "what was the first score?<BR>\n" );
document.write( ":<BR>\n" );
document.write( "In the 1st equation, replace a+b with (2c+3), find c<BR>\n" );
document.write( "2c + 3 + c = 228<BR>\n" );
document.write( "3c = 228 - 3<BR>\n" );
document.write( "c = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=225%2F3 ALIGN=MIDDLE  ALT=\"225%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "c = 75 is the 3rd score<BR>\n" );
document.write( ":<BR>\n" );
document.write( "Replace c with 75 in the 1st equation <BR>\n" );
document.write( "a + b + 75 = 228<BR>\n" );
document.write( "a + b = 228 - 75<BR>\n" );
document.write( ":<BR>\n" );
document.write( "a + b = 153<BR>\n" );
document.write( "a - b = 21; addition eliminates b find a<BR>\n" );
document.write( "-------------<BR>\n" );
document.write( "2a = 174<BR>\n" );
document.write( "a = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=174%2F2 ALIGN=MIDDLE  ALT=\"174%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "a = 87 is the 1st score </SPAN>\n" );
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