document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=751896>Question 751896</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I am trying to solve for y and I am running into issues. \r<BR>\n" );
document.write( "\n" );
document.write( "3x-y=0<BR>\n" );
document.write( "4x-y=2\r<BR>\n" );
document.write( "\n" );
document.write( "when I do the equations, I think I am adding or missing a step, in the first equation I do the following:\r<BR>\n" );
document.write( "\n" );
document.write( "3x-y=0\r<BR>\n" );
document.write( "\n" );
document.write( "Subtract 3x from both sides:\r<BR>\n" );
document.write( "\n" );
document.write( "3x-y=0<BR>\n" );
document.write( "-3x\r<BR>\n" );
document.write( "\n" );
document.write( "-y=-3x+0 or -y=-3x\r<BR>\n" );
document.write( "\n" );
document.write( "do I have to divide by -1? or do I stay at -y=3x?\r<BR>\n" );
document.write( "\n" );
document.write( "Same for:<BR>\n" );
document.write( "4x-y=2<BR>\n" );
document.write( "-4x\r<BR>\n" );
document.write( "\n" );
document.write( "-y=-4x+2\r<BR>\n" );
document.write( "\n" );
document.write( "Do I divide by -1 or leave it at -y?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #457460 by </B><A HREF=/tutors/aboutme.mpl?userid=Cromlix><B>Cromlix(4381)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Cromlix><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=Cromlix><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=457460\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> hi,<BR>\n" );
document.write( "I would use simultaneous equations:-\r<BR>\n" );
document.write( "\n" );
document.write( "3x - y = 0......1<BR>\n" );
document.write( "4x - y = 2......2\r<BR>\n" );
document.write( "\n" );
document.write( "Subtract (1) from (2)\r<BR>\n" );
document.write( "\n" );
document.write( " x     = 2\r<BR>\n" );
document.write( "\n" );
document.write( "Substitute x = 2 in (2)\r<BR>\n" );
document.write( "\n" );
document.write( "4x - y = 2<BR>\n" );
document.write( "4(2) - y = 2<BR>\n" );
document.write( " 8   - y = 2<BR>\n" );
document.write( "      -y = 2- 8<BR>\n" );
document.write( "      -y = -6<BR>\n" );
document.write( "       y = 6<BR>\n" );
document.write( "  x = 2: y = 6\r<BR>\n" );
document.write( "\n" );
document.write( "Hope this helps.<BR>\n" );
document.write( ":-) </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );