document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=30889>Question 30889</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the following system by substitution: \r<BR>\n" );
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document.write( " Solve the following system by substitution: \r<BR>\n" );
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document.write( "y =x +9<BR>\n" );
document.write( "x +9y =21\r<BR>\n" );
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document.write( "If the equations of the system are dependent, or if a system is inconsistent, so indicate. \r<BR>\n" );
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document.write( "In those cases enter dependent or inconsistent. Otherwise, enter your answer as an ordered pair.\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 #17634 by </B><A HREF=/tutors/aboutme.mpl?userid=Nate><B>Nate(3500)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Nate><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=17634\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y =x +9<BR>\n" );
document.write( "x +9y =21<BR>\n" );
document.write( "x +9(x+9) =21<BR>\n" );
document.write( "x + 9x + 81 = 21<BR>\n" );
document.write( "10x=-60<BR>\n" );
document.write( "x=-6<BR>\n" );
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document.write( "y =x +9<BR>\n" );
document.write( "y=(-6)+9<BR>\n" );
document.write( "y=3<BR>\n" );
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document.write( "these systems have different slopes, so they are perpendicular (independent;consistent)<BR>\n" );
document.write( "the point they intersect is: (-6,3) </SPAN>\n" );
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