document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=741543>Question 741543</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve by Substitution Method<BR>\n" );
document.write( "2x-4y=3.8<BR>\n" );
document.write( "3x-y=17.7<BR>\n" );
document.write( "I solved it then I plug in the numbers but it didn't come out right so I need you help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #452049 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=452049\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> we are given\r<BR>\n" );
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document.write( "2x-4y=3.8<BR>\n" );
document.write( "3x-y=17.7\r<BR>\n" );
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document.write( "first note that we can simplify equation one by dividing both sides of the equal sign by 2 and we get\r<BR>\n" );
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document.write( "x-2y=1.9 and<BR>\n" );
document.write( "x=1.9+2y\r<BR>\n" );
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document.write( "substitute for x in the second equation\r<BR>\n" );
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document.write( "3*(1.9+2y) - y = 17.7\r<BR>\n" );
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document.write( "5.7+6y - y = 17.7\r<BR>\n" );
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document.write( "5y = 12 and y = 2.4 and x=1.9+2*2.4=6.7\r<BR>\n" );
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