document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=233220>Question 233220</A>: <I><SPAN STYLE=\"word-break: break-all;\"> solve by the elimation method. 0.3x-0.2y=4<BR>\n" );
document.write( "                               0.4x+5y=1  What is the solution set I came up with (220/23, - 130/23) am I right or close to it </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #172143 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=172143\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  solve by the elimation method. 0.3x-0.2y=4<BR>\n" );
document.write( "0.4x+5y=1 What is the solution set I came up with (220/23, - 130/23) am I right or close to it<BR>\n" );
document.write( "-------------------<BR>\n" );
document.write( "Multiply thru both equations by 10 to get:<BR>\n" );
document.write( "3x-2y=40<BR>\n" );
document.write( "4x+50y=10<BR>\n" );
document.write( "--------------------<BR>\n" );
document.write( "Multiply thru the 1st equation by 25:<BR>\n" );
document.write( "75x-50y=1000<BR>\n" );
document.write( "4x +50y = 10<BR>\n" );
document.write( "-----------------------<BR>\n" );
document.write( "Add and solve for \"x\":<BR>\n" );
document.write( "79x = 1010<BR>\n" );
document.write( "x = 1010/79<BR>\n" );
document.write( "----<BR>\n" );
document.write( "Then substitute into 3x-2y=50 to solve for \"y\".<BR>\n" );
document.write( "===================================================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );