document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=14061>Question 14061</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The sum of three numbers is 6. The<BR>\n" );
document.write( "third number is the sum of the first<BR>\n" );
document.write( "and second number. The first number<BR>\n" );
document.write( "is one more than the third number.<BR>\n" );
document.write( "Find the numbers. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #7074 by </B><A HREF=/tutors/aboutme.mpl?userid=rahman><B>rahman(247)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rahman><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://my.opera.com/ammank/albums/showpics.dml?album=200096&picture=3111716 valign=middle><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=7074\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Suppose:<BR>\n" );
document.write( "x is the first number<BR>\n" );
document.write( "y is the second number<BR>\n" );
document.write( "z is the third number\r<BR>\n" );
document.write( "\n" );
document.write( "We can construct mathematic model from the problem:<BR>\n" );
document.write( "x + y + z = 6<BR>\n" );
document.write( "z=x+y<BR>\n" );
document.write( "x=z+1\r<BR>\n" );
document.write( "\n" );
document.write( "Look the first equation and the second equation:<BR>\n" );
document.write( "x+y+z=6<BR>\n" );
document.write( "(x+y)+z=6<BR>\n" );
document.write( "z+z=6<BR>\n" );
document.write( "2z=6<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2z%2F2=6%2F2 ALIGN=MIDDLE  ALT=\"2z%2F2=6%2F2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "z=3\r<BR>\n" );
document.write( "\n" );
document.write( "Substitute z=3 to x = z+1<BR>\n" );
document.write( "x = z+1<BR>\n" );
document.write( "x = 3+1<BR>\n" );
document.write( "x=4\r<BR>\n" );
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document.write( "Substitute x=4 and z=3 to z=x+y<BR>\n" );
document.write( "z=x+y<BR>\n" );
document.write( "3=4+y<BR>\n" );
document.write( "3-4=y<BR>\n" );
document.write( "y=-1\r<BR>\n" );
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document.write( "Thus, the first number is 4, the second number is -1, and the third number is 3<BR>\n" );
document.write( "OK </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );