document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=59520>Question 59520</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need some help on this problem:\r<BR>\n" );
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document.write( " I need to solve the system by substitution\r<BR>\n" );
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document.write( "  x + y = 12<BR>\n" );
document.write( "      y = 2x\r<BR>\n" );
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document.write( "  Jamie </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #40791 by </B><A HREF=/tutors/aboutme.mpl?userid=funmath><B>funmath(2933)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=funmath><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=40791\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Hi Jamie,<BR>\n" );
document.write( "Solve the system by substitution\r<BR>\n" );
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document.write( "L1)  x + y = 12<BR>\n" );
document.write( "L2)      y = 2x<BR>\n" );
document.write( "Substitute 2x into L1 and solve for x:<BR>\n" );
document.write( "x+(2x)=12<BR>\n" );
document.write( "3x=12<BR>\n" );
document.write( "3x/3=12/3<BR>\n" );
document.write( "x=4<BR>\n" );
document.write( "Substitute 4 into L2 and solve for y:<BR>\n" );
document.write( "y=2(4)<BR>\n" );
document.write( "y=8<BR>\n" );
document.write( "The solution is (x,y)=(4,8)<BR>\n" );
document.write( "Happy Calculating!!!<BR>\n" );
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