document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=23533>Question 23533</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the System by Substitution:\r<BR>\n" );
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document.write( "y=x+4\r<BR>\n" );
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document.write( "3x+y=16 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #12299 by </B><A HREF=/tutors/aboutme.mpl?userid=rapaljer><B>rapaljer(4671)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rapaljer><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=rapaljer><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=12299\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=x+4 <BR>\n" );
document.write( "3x+y=16\r<BR>\n" );
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document.write( "Substitute the y from the first equation into the second equation:\r<BR>\n" );
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document.write( "3x+ (_____)= 16<BR>\n" );
document.write( "3x + (x+4) = 16<BR>\n" );
document.write( "4x + 4 = 16<BR>\n" );
document.write( "4x = 12<BR>\n" );
document.write( "x=3\r<BR>\n" );
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document.write( "Substitute the x into the \"y=\" equation in order to find y:\r<BR>\n" );
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document.write( "y=x+4<BR>\n" );
document.write( "y = 3+ 4= 7\r<BR>\n" );
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document.write( "Check in the second equation:<BR>\n" );
document.write( "3x+y=16<BR>\n" );
document.write( "3(3) + 7= 16<BR>\n" );
document.write( "9+7=16<BR>\n" );
document.write( "It checks!\r<BR>\n" );
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document.write( "R^2 at SCC<BR>\n" );
document.write( " </SPAN>\n" );
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