document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=26479>Question 26479</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve each system of equations using the substitution method.<BR>\n" );
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document.write( "1)4x+y=160        <BR>\n" );
document.write( "12x-13y=-160  \r<BR>\n" );
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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 #14338 by </B><A HREF=/tutors/aboutme.mpl?userid=elima><B>elima(1433)</B></A><img src=\"/images/stars/stars-12.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=elima><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=14338\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First solve one of the equations for one of the variables;<BR>\n" );
document.write( "Lets solve the first equation for y;<BR>\n" );
document.write( "4x+y=160<BR>\n" );
document.write( "y=160-4x<BR>\n" );
document.write( "Now substitute that into the next equation for y;<BR>\n" );
document.write( "12x-13(160-4x)=-160<BR>\n" );
document.write( "12x-2080+52x=-160<BR>\n" );
document.write( "12x+52x=-160+2080<BR>\n" );
document.write( "64x=1920<BR>\n" );
document.write( "x=30<BR>\n" );
document.write( "Now that we have what x= lets find y;<BR>\n" );
document.write( "4(30)+y=160<BR>\n" );
document.write( "120+y=160<BR>\n" );
document.write( "y=160-120<BR>\n" );
document.write( "y=40<BR>\n" );
document.write( "Hope you understand<BR>\n" );
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