document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=16293>Question 16293</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can you please help me solve   {4x+2y=7<BR>\n" );
document.write( "                               {y=5x </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #7939 by </B><A HREF=/tutors/aboutme.mpl?userid=pwac><B>pwac(253)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=pwac><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=7939\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Use same principle as before<BR>\n" );
document.write( "4x+2y=7  ----(1)<BR>\n" );
document.write( "y=5x     ----(2)<BR>\n" );
document.write( "Sustitute value of y in (1) with value of y in(2)<BR>\n" );
document.write( "4x+2(5x)=7<BR>\n" );
document.write( "4x+10x=7<BR>\n" );
document.write( "14x=7<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=7%2F14=1%2F2=0.5 ALIGN=MIDDLE  ALT=\"x=7%2F14=1%2F2=0.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute this into (2) to find y<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=5%280.5%29 ALIGN=MIDDLE  ALT=\"y=5%280.5%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "y=2.5<BR>\n" );
document.write( "so x=0.5 and y=2.5 check by putting values into original equations<BR>\n" );
document.write( "Pete </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );