document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=819387>Question 819387</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the system by the method of elimination and check any solutions algebraically<BR>\n" );
document.write( "{2x + 5y  =  12 <BR>\n" );
document.write( "{5x + 8y  =  15 <BR>\n" );
document.write( " <BR>\n" );
document.write( "(x, y) = </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #495722 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=495722\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> ---<BR>\n" );
document.write( "2x + 5y = 12<BR>\n" );
document.write( "5x + 8y = 15<BR>\n" );
document.write( "---<BR>\n" );
document.write( "copy and paste the above standard form linear equations in to this matrix-method solver:<BR>\n" );
document.write( "https://sooeet.com/math/system-of-linear-equations-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer:<BR>\n" );
document.write( "x= -2.333333 = -7/3<BR>\n" );
document.write( "y= 3.333333 = 10/3<BR>\n" );
document.write( "---<BR>\n" );
document.write( "---<BR>\n" );
document.write( "now by elimination:<BR>\n" );
document.write( "10x + 25y = 60<BR>\n" );
document.write( "-10x - 16y = -30<BR>\n" );
document.write( "---<BR>\n" );
document.write( "add:<BR>\n" );
document.write( "9y = 30<BR>\n" );
document.write( "y = 10/3 = 3.333333<BR>\n" );
document.write( "2x + 5(10/3) = 12<BR>\n" );
document.write( "2x = 12 - 5(10/3)<BR>\n" );
document.write( "2x = 36/3 - 50/3<BR>\n" );
document.write( "2x = -14/3<BR>\n" );
document.write( "x = -14/(2*3)<BR>\n" );
document.write( "x = -7/3 = -2.333333<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer by elimination (same answer as by the matrix-method):<BR>\n" );
document.write( "x= -2.333333 = -7/3<BR>\n" );
document.write( "y= 3.333333 = 10/3<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 </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );