document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=186710>Question 186710</A>: <I><SPAN STYLE=\"word-break: break-all;\"> please help me solve this:  Solve these problems by elimination<BR>\n" );
document.write( "1)3x-y=26    x+y=10<BR>\n" );
document.write( "2)135x+45y=-11   81x-75y=13<BR>\n" );
document.write( "3)x+2y=3     2x+4y=6<BR>\n" );
document.write( "4)3x-5y=50   2x+4y=-18 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #140014 by </B><A HREF=/tutors/aboutme.mpl?userid=checkley77><B>checkley77(12844)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=checkley77><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=140014\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1)<BR>\n" );
document.write( "3x-y=26   <BR>\n" );
document.write( "x+y=10 add<BR>\n" );
document.write( "-------<BR>\n" );
document.write( "4x=36<BR>\n" );
document.write( "x=36/4<BR>\n" );
document.write( "x=9 ans.<BR>\n" );
document.write( "3*9-y=26<BR>\n" );
document.write( "27-y=26<BR>\n" );
document.write( "-y=26-27<BR>\n" );
document.write( "-y==1<BR>\n" );
document.write( "y=1 ans.<BR>\n" );
document.write( "---------------------------------------------<BR>\n" );
document.write( "2)<BR>\n" );
document.write( "135x+45y=-11 multiply this equation by 5<BR>\n" );
document.write( "81x-75y=13 multiply this equation by 3 & add them<BR>\n" );
document.write( "675x+225y=-55<BR>\n" );
document.write( "243x-225y=39<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "918x=-16<BR>\n" );
document.write( "x=-16/918<BR>\n" );
document.write( "x=-8/459 ans.<BR>\n" );
document.write( "81(-8/459)-75y=13<BR>\n" );
document.write( "-648/459-75y=13<BR>\n" );
document.write( "-75y=13+648/459<BR>\n" );
document.write( "-75y=13+24/17<BR>\n" );
document.write( "-75y=(13*17+24)/17<BR>\n" );
document.write( "-75y=(221+24)/17<BR>\n" );
document.write( "-75y=245/17<BR>\n" );
document.write( "y=245/17*1/-75<BR>\n" );
document.write( "y=-245/1275<BR>\n" );
document.write( "y=-49/255 ans.<BR>\n" );
document.write( "3)<BR>\n" );
document.write( "x+2y=3 multiply by -2 & add<BR>\n" );
document.write( "2x+4y=6<BR>\n" );
document.write( "-2x-4y=-6<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "0+0=0 these are identical equations with 2 unknowns. no unique solution.<BR>\n" );
document.write( "----------------------------------------------------------- <BR>\n" );
document.write( "4)<BR>\n" );
document.write( "3x-5y=50 multiply by 4<BR>\n" );
document.write( "2x+4y=-18 multiply by 5 & add<BR>\n" );
document.write( "12x-20y=200<BR>\n" );
document.write( "10x+20y=-90<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "22x=110<BR>\n" );
document.write( "x=110/22<BR>\n" );
document.write( "x=5 ans.<BR>\n" );
document.write( "3*5-5y=50<BR>\n" );
document.write( "15-5y=50<BR>\n" );
document.write( "-5y=50-15<BR>\n" );
document.write( "-5y=35<BR>\n" );
document.write( "y=35/-5<BR>\n" );
document.write( "y=-7 ans.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );