document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=838687>Question 838687</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A linear system is given.\r<BR>\n" );
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document.write( "y= 1/5x - 3   line 1<BR>\n" );
document.write( "y= -2/7x +1   line 2\r<BR>\n" );
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document.write( "a) Explain why the following is an equivalent linear system.<BR>\n" );
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document.write( "   x-5y=15    line 3<BR>\n" );
document.write( "   2x+7y=7    line 4\r<BR>\n" );
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document.write( "b) If you graph all four lines, what results do you expect? Graph to check.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #505223 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=505223\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a)multiply line 1 by 5 to get line 3<BR>\n" );
document.write( "multiply line 2 by 7 to get line 4<BR>\n" );
document.write( "b) two lines that intersect since line one and line three are identical and line 2 and 4 are identical<BR>\n" );
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