document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=252356>Question 252356</A>: <I><SPAN STYLE=\"word-break: break-all;\"> given 3x- 4y = 7  and x+ cy = 13 for what value of c will this system of equations NOT have a solution?\r<BR>\n" );
document.write( "\n" );
document.write( "a  -4  b  -4/3  c -3/4  d  3/4  e  4/3 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #184247 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=184247\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 3x- 4y = 7<BR>\n" );
document.write( "x+ cy = 13<BR>\n" );
document.write( ".<BR>\n" );
document.write( "-4y=-3x+7<BR>\n" );
document.write( "y=3x/4 -7/4<BR>\n" );
document.write( ".<BR>\n" );
document.write( "cy=13-x<BR>\n" );
document.write( "y=13/c - x/c<BR>\n" );
document.write( ".<BR>\n" );
document.write( "There would be no answer if the equations had the same slope:<BR>\n" );
document.write( "3x/4=-x/c Let the slope of the 2nd equal the slope of the 1st.<BR>\n" );
document.write( "c/4=-x/3x Multiply each side by c/3x<BR>\n" );
document.write( "c=-4/3<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );