document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=932756>Question 932756</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system by substitution. <BR>\n" );
document.write( "x &#8722; 2y = 4 <BR>\n" );
document.write( "2x + 3y = 15 <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #566375 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=566375\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x - 2y = 4<BR>\n" );
document.write( "2x + 3y = 15<BR>\n" );
document.write( "---<BR>\n" );
document.write( "put the system of linear equations into standard form<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - 2y = 4<BR>\n" );
document.write( "2x + 3y = 15<BR>\n" );
document.write( "---<BR>\n" );
document.write( "copy and paste the above standard form linear equations in to this solver:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "solution by matrix method:<BR>\n" );
document.write( "x = 6<BR>\n" );
document.write( "y = 1<BR>\n" );
document.write( "--<BR>\n" );
document.write( "now by substitution:<BR>\n" );
document.write( "---<BR>\n" );
document.write( "x - 2y = 4<BR>\n" );
document.write( "x = 4 + 2y<BR>\n" );
document.write( "2x + 3y = 15<BR>\n" );
document.write( "2(4 + 2y) + 3y = 15<BR>\n" );
document.write( "8 + 4y + 3y = 15<BR>\n" );
document.write( "7y = 7<BR>\n" );
document.write( "y = 1<BR>\n" );
document.write( "x = 4 + 2y<BR>\n" );
document.write( "x = 4 + 2<BR>\n" );
document.write( "x = 6<BR>\n" );
document.write( "---<BR>\n" );
document.write( "solution by substitution:<BR>\n" );
document.write( "x = 6<BR>\n" );
document.write( "y = 1<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve systems of linear equations up to 6-equations 6-variables:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "--- </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );