document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=103235>Question 103235</A>: <I><SPAN STYLE=\"word-break: break-all;\"> (1)<BR>\n" );
document.write( "Solve each of the following systems by substitution\r<BR>\n" );
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document.write( "5x-2y=-5\r<BR>\n" );
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document.write( "y-5x=3\r<BR>\n" );
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document.write( "(2)<BR>\n" );
document.write( "Solve each of the following systems by substitution\r<BR>\n" );
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document.write( "8x-4y=16\r<BR>\n" );
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document.write( "y=2x-4 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #75164 by </B><A HREF=/tutors/aboutme.mpl?userid=HyperBrain><B>HyperBrain(694)</B></A><img src=\"/images/stars/stars-11.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=HyperBrain><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=75164\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1)5x-2y=-5<BR>\n" );
document.write( "(2)y-5x=3<BR>\n" );
document.write( "(3)y=5x+3\r<BR>\n" );
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document.write( "Substituting (3) to (1),\r<BR>\n" );
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document.write( "5x+2(5x+3)=-5<BR>\n" );
document.write( "5x+10x+6=-5<BR>\n" );
document.write( "15x+6=-5<BR>\n" );
document.write( "15x=-11<BR>\n" );
document.write( "x=-11/15\r<BR>\n" );
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document.write( "y=5(-11/15)+3<BR>\n" );
document.write( " =-2/3\r<BR>\n" );
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document.write( "The solution set, (x,y)=(-11/15,-2/3)\r<BR>\n" );
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document.write( "(1)8x-4y=16<BR>\n" );
document.write( "(2)y=2x-4\r<BR>\n" );
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document.write( "Substituting (2) to (1),<BR>\n" );
document.write( "8x-4(2x-4)=16<BR>\n" );
document.write( "8x-8x+16=16<BR>\n" );
document.write( "16=16\r<BR>\n" );
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document.write( "Therefore, the statement has infinite solutions! </SPAN>\n" );
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