document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=222215>Question 222215</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 1/2x+ (-1/2)y=1/2<BR>\n" );
document.write( "(-1/3)x+(-3/4)y=2\r<BR>\n" );
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document.write( "I divided everything by 1/2 and you get x-y=1 for the first equation.<BR>\n" );
document.write( "the second equation i times everything by 12 and get (-4)x + (-9)y = 24<BR>\n" );
document.write( "multiply the first equation by -9, so we get -9x +9y = -9. <BR>\n" );
document.write( "(-9)x + (9)y = -9<BR>\n" );
document.write( "(-4)x + (-9)y = 24<BR>\n" );
document.write( "I get (-15/13, -28/13)\r<BR>\n" );
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document.write( "But it is wrong, what did i do wrong?  Thanks for the help! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #166467 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=166467\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1/2x+ (-1/2)y=1/2<BR>\n" );
document.write( "(-1/3)x+(-3/4)y=2 <BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "Multiply thru 1st by 2 <BR>\n" );
document.write( "Multiply thru 2nd by -12<BR>\n" );
document.write( "-------------------------------<BR>\n" );
document.write( "x - y = 1<BR>\n" );
document.write( "4x +9y = -24<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Multiply thru 1st by 4<BR>\n" );
document.write( "----------------------------<BR>\n" );
document.write( "4x - 4y = 4<BR>\n" );
document.write( "4x + 9y = -24<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "Subtract 1st from 2nd and solve for \"y\":<BR>\n" );
document.write( "13y = -28<BR>\n" );
document.write( "y = -28/13<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "Substitute into x - y = 1 to solve for \"x\":<BR>\n" );
document.write( "x +(28/13) = 1<BR>\n" );
document.write( "x = (13/13)-(28/13) <BR>\n" );
document.write( "x = -15/13<BR>\n" );
document.write( "==================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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