document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=752550>Question 752550</A>: <I><SPAN STYLE=\"word-break: break-all;\"> if there are 30 questions on a test. Each question is worth either 2 or 3 points. The total is 78 points. How many of each type is on the test?\r<BR>\n" );
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document.write( "How do i write this equation and solve?<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #457870 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=457870\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x = the number of questions worth two points each.<BR>\n" );
document.write( "The remainder (that's 30-x) are worth three points each.<BR>\n" );
document.write( "The sum of these is 78 points.<BR>\n" );
document.write( "So we can write the equation:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+%2B+3%2830-x%29+=+78 ALIGN=MIDDLE  ALT=\"2x+%2B+3%2830-x%29+=+78\"   DISABLED_style= \"max-width:90%; height:auto;\" > Solve for x.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2x+%2B+90-3x+=+78 ALIGN=MIDDLE  ALT=\"2x+%2B+90-3x+=+78\"   DISABLED_style= \"max-width:90%; height:auto;\" > Combine the x's.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x+%2B+90+=+78 ALIGN=MIDDLE  ALT=\"-x+%2B+90+=+78\"   DISABLED_style= \"max-width:90%; height:auto;\" > Subtract 90 from both sides.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=-x+=+-12 ALIGN=MIDDLE  ALT=\"-x+=+-12\"   DISABLED_style= \"max-width:90%; height:auto;\" > so...<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x+=+12 ALIGN=MIDDLE  ALT=\"x+=+12\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "There are 12 two-point questions and 18 three-point questions. </SPAN>\n" );
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