document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=152468>Question 152468</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system of linera equations by the substitution method.<BR>\n" );
document.write( " y = -4/3x<BR>\n" );
document.write( " <BR>\n" );
document.write( " 4x +2y = 5/4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #112112 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=112112\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=-4/3x<BR>\n" );
document.write( "4x+2y=5/4<BR>\n" );
document.write( "4x+2(-4x/3)=5/4<BR>\n" );
document.write( "4x-8x/3=5/4<BR>\n" );
document.write( "(3*4x-8x)/3=5/4<BR>\n" );
document.write( "4(12x-8x)=3*5<BR>\n" );
document.write( "4*4x=15<BR>\n" );
document.write( "16x=15<BR>\n" );
document.write( "x=15/16 answer.<BR>\n" );
document.write( "y=-4/3*15/16<BR>\n" );
document.write( "y=-4*5/16<BR>\n" );
document.write( "y=-20/16=-5/4 answer.<BR>\n" );
document.write( "proof:<BR>\n" );
document.write( "4*15/16+2*-5/4=5/4<BR>\n" );
document.write( "60/16-10/4=5/4<BR>\n" );
document.write( "15/4-10/4=5/4<BR>\n" );
document.write( "5/4=5/4<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );