document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=187420>Question 187420</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2x + 2y=8 and 4x-6y=36\r<BR>\n" );
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document.write( "solution (6,-2) how did my text book come up with thesesolutions </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140478 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=140478\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 2x + 2y=8 <BR>\n" );
document.write( "4x - 6y=36 <BR>\n" );
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document.write( "Divide thru the 2nd equation by 2 to get:<BR>\n" );
document.write( "2x + 2y = 8<BR>\n" );
document.write( "2x - 3y = 18<BR>\n" );
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document.write( "subtract the 2nd from the 1st equation to solve for \"y\":<BR>\n" );
document.write( "5y = -10<BR>\n" );
document.write( "y = -2<BR>\n" );
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document.write( "Substitute into 2x + 2y = 8 to solve for \"x\":<BR>\n" );
document.write( "2x + 2*-2 = 8<BR>\n" );
document.write( "2x - 4 = 8<BR>\n" );
document.write( "2x = 12<BR>\n" );
document.write( "x = 6<BR>\n" );
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document.write( "solution (6,-2)<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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