document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=826654>Question 826654</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi. I'm in grade 7 and i'm not quite sure if this is under the right category but the category I'm talking about is Algebra. I missed a homework handout of Algebra a while ago and now i forget how to do it. the question I'm stuck on is:<BR>\n" );
document.write( "if x,y and z are positive integers with xy=18, xz=3 and yz=6, what is the value of x+y+z? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #498357 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=498357\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> if x,y and z are positive integers with xy=18, xz=3 and yz=6,<BR>\n" );
document.write( " what is the value of x+y+z?<BR>\n" );
document.write( ";<BR>\n" );
document.write( "Rearrange the equations and substitute<BR>\n" );
document.write( "xy = 18<BR>\n" );
document.write( "y = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx ALIGN=MIDDLE  ALT=\"18%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "xz = 3<BR>\n" );
document.write( "z = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2Fx ALIGN=MIDDLE  ALT=\"3%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ":<BR>\n" );
document.write( "yz = 6<BR>\n" );
document.write( "replace y with 18/x and replace z with 3/x<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=18%2Fx ALIGN=MIDDLE  ALT=\"18%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" >*<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%2Fx ALIGN=MIDDLE  ALT=\"3%2Fx\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 6<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=54%2Fx%5E2 ALIGN=MIDDLE  ALT=\"54%2Fx%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 6<BR>\n" );
document.write( "54 = 6x^2; multiplied both sides by x^2<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=54%2F6 ALIGN=MIDDLE  ALT=\"54%2F6\"   DISABLED_style= \"max-width:90%; height:auto;\" > = x^2; divided both sides by 6<BR>\n" );
document.write( "9 = x^2<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%289%29 ALIGN=MIDDLE  ALT=\"sqrt%289%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > <BR>\n" );
document.write( "x = 3<BR>\n" );
document.write( "then<BR>\n" );
document.write( "3y = 18<BR>\n" );
document.write( "y = 6<BR>\n" );
document.write( "and<BR>\n" );
document.write( "6z = 6<BR>\n" );
document.write( "z = 1<BR>\n" );
document.write( "Find x + y + z<BR>\n" );
document.write( "3 + 6 + 1 = 10<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );