document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=78939>Question 78939</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve these simultaneous equations using a algebric method\r<BR>\n" );
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document.write( "3x+7y=18<BR>\n" );
document.write( "x+2y=5<BR>\n" );
document.write( "x=           y= </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #56652 by </B><A HREF=/tutors/aboutme.mpl?userid=b_howie><B>b_howie(8)</B></A><img src=\"/images/stars/stars-05.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=b_howie><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=56652\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x+7y=18<BR>\n" );
document.write( "x+2y=5\r<BR>\n" );
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document.write( "1.) solve one equation for x<BR>\n" );
document.write( "x+2y=5<BR>\n" );
document.write( "x=5-2y\r<BR>\n" );
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document.write( "2.) Plug in the value of x in the second equation<BR>\n" );
document.write( "3x+7y=18<BR>\n" );
document.write( "3(5-2y)+7y=5<BR>\n" );
document.write( "15-6y+7y=5<BR>\n" );
document.write( "1y=-10<BR>\n" );
document.write( "y=-10\r<BR>\n" );
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document.write( "3.) Plug the value of y into either equation to solve for x<BR>\n" );
document.write( "x+2y=5<BR>\n" );
document.write( "x+2(-10)=5<BR>\n" );
document.write( "x+(-20)=5<BR>\n" );
document.write( "x-20=5<BR>\n" );
document.write( "x=25\r<BR>\n" );
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document.write( "x=25<BR>\n" );
document.write( "y=-10 </SPAN>\n" );
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