document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=501373>Question 501373</A>: <I><SPAN STYLE=\"word-break: break-all;\"> how to write the equation of a line passing through (1,2) and parallel to <BR>\n" );
document.write( "3x-y=-7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #338503 by </B><A HREF=/tutors/aboutme.mpl?userid=Mr_Mathman><B>Mr_Mathman(5)</B></A><img src=\"/images/stars/iconNewId_16x16.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Mr_Mathman><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=338503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> First solve the eqn for y<BR>\n" );
document.write( "3x-y=-7 subtract 3x from both sides<BR>\n" );
document.write( "-y=-3x-7 multiply both sides by -1<BR>\n" );
document.write( "y=3x+7<BR>\n" );
document.write( "Replace 7 with b and replace (x,y) with (1,2). So,<BR>\n" );
document.write( "2=3(1)+b=3+b subtract 3 from both sides<BR>\n" );
document.write( "b=-1<BR>\n" );
document.write( "Remember that y=mx+b and that parallel lines have the same slope. So in the parallel line m=3 and b=-1. This gives:<BR>\n" );
document.write( "y=3x-1 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );