document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=440849>Question 440849</A>: <I><SPAN STYLE=\"word-break: break-all;\"> could someone please help me solve this equation and solve by the substitution method?\r<BR>\n" );
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document.write( "The solution to the system of equations below is (8,4)\r<BR>\n" );
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document.write( "3x - 5y = 4<BR>\n" );
document.write( "7x + 3y = 68\r<BR>\n" );
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document.write( "thank you </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #304418 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=304418\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x - 5y = 4<BR>\n" );
document.write( "7x + 3y = 68<BR>\n" );
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document.write( "9x - 15y = 12 Eqn 1 times 3<BR>\n" );
document.write( "35x+ 15y = 340 Eqn 2 times 5 --> 15y = 340 - 35x<BR>\n" );
document.write( "Sub for 15y in Eqn 1 times 3<BR>\n" );
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document.write( "9x - (340-35x) = 12<BR>\n" );
document.write( "44x = 352<BR>\n" );
document.write( "x = 8<BR>\n" );
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document.write( "3*8 - 5y = 4<BR>\n" );
document.write( "y = 4<BR>\n" );
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document.write( "If you solve for x or y as a 1st step, you get into messy fractions.<BR>\n" );
document.write( "Make it easy on yourself.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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