document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=175937>Question 175937</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve each system by the addition method.\r<BR>\n" );
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document.write( "3x-2.5y=7.125<BR>\n" );
document.write( "2.5x-3y=7.3125 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #131048 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=131048\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Solve each system by the addition method. <BR>\n" );
document.write( "3x-2.5y=7.125<BR>\n" );
document.write( "2.5x-3y=7.3125<BR>\n" );
document.write( "---------------------<BR>\n" );
document.write( "Multiply 1st by 2.5 and 2nd by -3 to get:<BR>\n" );
document.write( "7.5x - 6.25y = 2.5*7.125<BR>\n" );
document.write( "-7.5x +9y    = -3*7.3125<BR>\n" );
document.write( "---------------------------------------------<BR>\n" );
document.write( "Add to get:<BR>\n" );
document.write( "2.75y = -4.125<BR>\n" );
document.write( "y = -1.5<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "Substitute to solve for \"y\":<BR>\n" );
document.write( "3(-1.5) -2.5y = 7.125<BR>\n" );
document.write( "-4.5 -2.5y = 7.125<BR>\n" );
document.write( "-2.5y = 11.625<BR>\n" );
document.write( "y = -4.65<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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document.write( "-------------------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.  </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );