document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1120748>Question 1120748</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi<BR>\n" );
document.write( "the total mass of A, B C D was 280kg. If the mass of A decreased by 30kg, the mass of B was increased by 10kg, the mass of C was halved and the mass of D was tripled, the 4 masses would be equal. Find the mass of each.\r<BR>\n" );
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document.write( "Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #736432 by </B><A HREF=/tutors/aboutme.mpl?userid=Shin123><B>Shin123(626)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Shin123><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=Shin123><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=736432\">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=a%2Bb%2Bc%2Bd=280 ALIGN=MIDDLE  ALT=\"a%2Bb%2Bc%2Bd=280\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a=b%2B40 ALIGN=MIDDLE  ALT=\"a=b%2B40\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a-40=b ALIGN=MIDDLE  ALT=\"a-40=b\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c=2b%2B20 ALIGN=MIDDLE  ALT=\"c=2b%2B20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=c%2F6 ALIGN=MIDDLE  ALT=\"d=c%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute b+40 for a,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%2B40%2Bb%2Bc%2Bd=280 ALIGN=MIDDLE  ALT=\"b%2B40%2Bb%2Bc%2Bd=280\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2b%2B40%2Bc%2Bd=280 ALIGN=MIDDLE  ALT=\"2b%2B40%2Bc%2Bd=280\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute 2b+20 for c,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2b%2B40%2B2b%2B20%2Bd=280 ALIGN=MIDDLE  ALT=\"2b%2B40%2B2b%2B20%2Bd=280\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4b%2B60%2Bd=280 ALIGN=MIDDLE  ALT=\"4b%2B60%2Bd=280\"   DISABLED_style= \"max-width:90%; height:auto;\" > Substitute (2b+20)/6 for d,\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4b%2B60%2B%281%2F3%29b%2B%2810%2F3%29=280 ALIGN=MIDDLE  ALT=\"4b%2B60%2B%281%2F3%29b%2B%2810%2F3%29=280\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2813%2F3%29b%2B%28190%2F3%29=280 ALIGN=MIDDLE  ALT=\"%2813%2F3%29b%2B%28190%2F3%29=280\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2813%2F3%29b%2B%28190%2F3%29=840%2F3 ALIGN=MIDDLE  ALT=\"%2813%2F3%29b%2B%28190%2F3%29=840%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%2813%2F3%29b=650%2F3 ALIGN=MIDDLE  ALT=\"%2813%2F3%29b=650%2F3\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28b=50%29 ALIGN=MIDDLE  ALT=\"highlight%28b=50%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=a-40=50 ALIGN=MIDDLE  ALT=\"a-40=50\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28a=90%29 ALIGN=MIDDLE  ALT=\"highlight%28a=90%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c=2%2850%29%2B20 ALIGN=MIDDLE  ALT=\"c=2%2850%29%2B20\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28c=120%29 ALIGN=MIDDLE  ALT=\"highlight%28c=120%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=d=120%2F6 ALIGN=MIDDLE  ALT=\"d=120%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28d=20%29 ALIGN=MIDDLE  ALT=\"highlight%28d=20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > So the masses are a=90,b=50,c=120,and d=20. Check:90+50=140+120=260+20=280.90-30=60. 50+10=60. 120/2=60. 20*3=60. Correct. </SPAN>\n" );
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