document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=362322>Question 362322</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following systems by substitution. Substitute the expression in the second equation into the first equation and solve. (If the system has no solution, enter NONE for each answer.) \r<BR>\n" );
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document.write( "x-y= -4<BR>\n" );
document.write( "y= 3x+6\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #258269 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=258269\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Replace y in the 1st equation by 3x+6 (from the bottom equation):<BR>\n" );
document.write( "x - (3x+6) = -4,<BR>\n" );
document.write( "x - 3x-6 = -4,<BR>\n" );
document.write( "-2x = 2,<BR>\n" );
document.write( "x = -1.  Then y = 3*-1 + 6 = -3+6 = 3. </SPAN>\n" );
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