document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=622124>Question 622124</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I'm working on my exam review and I can't figure out how to do this question. The question is: a trolley loaded with 6 small cans of paint has a mass of 15.7kg. When 5 more cans are added, the mass becomes 21,7kg. Let M kilograms represent the mass of the trolley and n kilograms the mass of a small can of paint. Determine the mass of a small can of paint and the mass of the trolley. In order to solve this I need to use substitution or elimination.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #391127 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=391127\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+%2B+6n+=+15.7 ALIGN=MIDDLE  ALT=\"M+%2B+6n+=+15.7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+%2B+11n+=+21.7 ALIGN=MIDDLE  ALT=\"M+%2B+11n+=+21.7\"   DISABLED_style= \"max-width:90%; height:auto;\" > subtract these two<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+-5n+=+-+6 ALIGN=MIDDLE  ALT=\"+-5n+=+-+6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=n+=+6%2F5 ALIGN=MIDDLE  ALT=\"n+=+6%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Now use that value of n in the first equation to solve for M<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+%2B+6%2A%286%2F5%29+=+15.7 ALIGN=MIDDLE  ALT=\"M+%2B+6%2A%286%2F5%29+=+15.7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+15.7+-+36%2F5 ALIGN=MIDDLE  ALT=\"M+=+15.7+-+36%2F5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+15.7+-+8.4 ALIGN=MIDDLE  ALT=\"M+=+15.7+-+8.4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=M+=+7.3 ALIGN=MIDDLE  ALT=\"M+=+7.3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
document.write( "\n" );
document.write( "You can check your answer by using M and n in second equation to ee if the result is 21.7 </SPAN>\n" );
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