document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=203365>Question 203365</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Could you please help me out with this problem??\r<BR>\n" );
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document.write( "Solve by elimination method\r<BR>\n" );
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document.write( "7/2x + 7/3y = 42\r<BR>\n" );
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document.write( "1/4x + 1/3y = 4\r<BR>\n" );
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document.write( "Thank you very much!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #153434 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=153434\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve by elimination method <BR>\n" );
document.write( "7/2x + 7/3y = 42 <BR>\n" );
document.write( "1/4x + 1/3y = 4 <BR>\n" );
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document.write( "Multiply thru the 1st by 6; Multiply thru the 2nd by 12<BR>\n" );
document.write( "21x + 14y = 252<BR>\n" );
document.write( "3x + 4y = 48<BR>\n" );
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document.write( "Solve the 2nd for \"x\"<BR>\n" );
document.write( "x = (-4/3)y + 16<BR>\n" );
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document.write( "Substitute into the modified 1st equation:<BR>\n" );
document.write( "21((-4/3)y + 16) + 14y = 252<BR>\n" );
document.write( "-28y + 336 + 14y = 252<BR>\n" );
document.write( "-14y = - 84<BR>\n" );
document.write( "y = 6<BR>\n" );
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document.write( "Substitute into x = (-4/3)y + 16 to get x = (-24/3)+16 = 8<BR>\n" );
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document.write( "Ans: (8,6)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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