document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=411517>Question 411517</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to solve a set of equations by the elimination method, but I am having trouble. The set of equations I have to solve are 4x-5y=38 and 7x-8y=22.<BR>\n" );
document.write( "Can someone please help?   </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #289249 by </B><A HREF=/tutors/aboutme.mpl?userid=nerdybill><B>nerdybill(7384)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nerdybill><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/cgi-bin/show-face.mpl?user=nerdybill><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=289249\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 4x-5y=38<BR>\n" );
document.write( "7x-8y=22<BR>\n" );
document.write( ".<BR>\n" );
document.write( "multiply top eq by 7; bottom eq by -4 then ADD:<BR>\n" );
document.write( " 28x-35y=266<BR>\n" );
document.write( "-28x+32y=-88<BR>\n" );
document.write( "----------------<BR>\n" );
document.write( "-3y = 178<BR>\n" );
document.write( "y = 178/(-3)<BR>\n" );
document.write( "y = -178/3<BR>\n" );
document.write( "y = -59.33<BR>\n" );
document.write( ".<BR>\n" );
document.write( "find x by substituting above into:<BR>\n" );
document.write( "4x-5y=38<BR>\n" );
document.write( "4x-5(-59.33)=38<BR>\n" );
document.write( "4x=-258.67<BR>\n" );
document.write( "x = -64.67\r<BR>\n" );
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document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );