document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=7926>Question 7926</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve each system by the substitution method. Determine whether the equations are independent, dependent, or inconsistent.\r<BR>\n" );
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document.write( "29.) 2x + y = 9<BR>\n" );
document.write( "       2x – 5y = 15\r<BR>\n" );
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document.write( "The books answer is this what I don't understand is how the book came out with this answer. Can you help me solve this please?  \r<BR>\n" );
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document.write( "{(5, -1)}, independent\r<BR>\n" );
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document.write( "Thank you-<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 #4350 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=4350\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> substitution method...\r<BR>\n" );
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document.write( "eqn1 can be rewritten as 2x = 9-y. Now put this into the second equation as:\r<BR>\n" );
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document.write( "9-y - 5y = 15 and now simplfy<BR>\n" );
document.write( "9 - 6y = 15<BR>\n" );
document.write( "-6y = 6<BR>\n" );
document.write( "y = 6/-6\r<BR>\n" );
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document.write( "--> y = -1\r<BR>\n" );
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document.write( "sub this back into 2x = 9-y\r<BR>\n" );
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document.write( "2x = 9-(-1)<BR>\n" );
document.write( "2x = 9+1<BR>\n" );
document.write( "2x = 10<BR>\n" );
document.write( "x = 10/2\r<BR>\n" );
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document.write( "--> x = 5\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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