document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=845193>Question 845193</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can anyone solve this for me.<BR>\n" );
document.write( "If 7x y = 23 and x 7y =47, then find the value of x-y?<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #509282 by </B><A HREF=/tutors/aboutme.mpl?userid=chidex><B>chidex(1)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=chidex><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=509282\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 7x y=23-------(1)<BR>\n" );
document.write( "x 7y=47-------(2)<BR>\n" );
document.write( "from equation (1)<BR>\n" );
document.write( "7x y=23<BR>\n" );
document.write( "substract 7x from both side <BR>\n" );
document.write( "7x-7x y=23-7x<BR>\n" );
document.write( "y=23-7x-------(3)<BR>\n" );
document.write( "substitu y=23-7x into equation (2)<BR>\n" );
document.write( "x 7(23-7x)=47<BR>\n" );
document.write( "x 161-49x=47<BR>\n" );
document.write( "x-49x=47-161<BR>\n" );
document.write( "48x=114<BR>\n" );
document.write( "48x/48=114/48<BR>\n" );
document.write( "x=2.38 or x=2.4<BR>\n" );
document.write( "substitute x=2.4 in equation (2)<BR>\n" );
document.write( "7(2.4) y=23<BR>\n" );
document.write( "16.4 y=23<BR>\n" );
document.write( "y=23-16.4<BR>\n" );
document.write( "y=6.6 </SPAN>\n" );
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