document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1130335>Question 1130335</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve the systems of equations by using the substitution method. (If the system is dependent, enter a general solution in terms of c. If there is no solution, enter NO SOLUTION.)<BR>\n" );
document.write( "{5x&#8722; 4y	 = &#8722;17	<BR>\n" );
document.write( "	y= 5x &#8722; 7<BR>\n" );
document.write( "(x, y) =<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 #747007 by </B><A HREF=/tutors/aboutme.mpl?userid=math_helper><B>math_helper(2461)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_helper><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=math_helper><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=747007\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "5x-4y = -17<BR>\n" );
document.write( "y = 5x-7<br>\r<BR>\n" );
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document.write( "Substituting for y in the top equation by the RHS of the bottom equation:<BR>\n" );
document.write( "5x - 4(5x-7) = -17<BR>\n" );
document.write( "5x - 20x + 28 = -17<BR>\n" );
document.write( "-15x = -45<BR>\n" );
document.write( "  15x = 45<BR>\n" );
document.write( "     x = 45/15 = 3   —>  y = 5(3)-7 = 15-7 = 8<BR>\n" );
document.write( "—\r<BR>\n" );
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document.write( "Ans:  x=3, y=8  \r<BR>\n" );
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