document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1174289>Question 1174289</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Earl solved the following system of equation using substitution.<BR>\n" );
document.write( "x + y = 3 <BR>\n" );
document.write( "2x - 3y = 16 \r<BR>\n" );
document.write( "\n" );
document.write( "Earl's Solution <BR>\n" );
document.write( "2(3-y)-=16<BR>\n" );
document.write( "6-y-3y=16\r<BR>\n" );
document.write( "\n" );
document.write( "6-4y=16<BR>\n" );
document.write( "6-6-4y=16-6<BR>\n" );
document.write( "    4y=10<BR>\n" );
document.write( "   -4y=10 <BR>\n" );
document.write( "   -4= -4<BR>\n" );
document.write( "y=-2.5<BR>\n" );
document.write( "x+(-2.5)=3<BR>\n" );
document.write( "x=5.5\r<BR>\n" );
document.write( "\n" );
document.write( "Unfortunately, he made a mistake. Locate his error </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #799727 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10551)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathTherapy><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=MathTherapy><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=799727\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Earl solved the following system of equation using substitution.<BR>\n" );
document.write( "x + y = 3 <BR>\n" );
document.write( "2x - 3y = 16 \r<BR>\n" );
document.write( "\n" );
document.write( "Earl's Solution <BR>\n" );
document.write( "2(3-y)-=16<BR>\n" );
document.write( "6-y-3y=16\r<BR>\n" );
document.write( "\n" );
document.write( "6-4y=16<BR>\n" );
document.write( "6-6-4y=16-6<BR>\n" );
document.write( "    4y=10<BR>\n" );
document.write( "   -4y=10 <BR>\n" );
document.write( "   -4= -4<BR>\n" );
document.write( "y=-2.5<BR>\n" );
document.write( "x+(-2.5)=3<BR>\n" );
document.write( "x=5.5\r<BR>\n" );
document.write( "\n" );
document.write( "Unfortunately, he made a mistake. Locate his error<BR>\n" );
document.write( "<PRE STYLE=\"white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;\">Those 2 are both WRONG!!<BR>\n" );
document.write( "The error is NOT with the \"- 3y\".<BR>\n" );
document.write( "The \"-\" is there on Line 1, but the \"3y\" is missing. However, the \"- 3y\" was included on Line 2. <BR>\n" );
document.write( "So, it was left out of one of the lines but wasn't forgotten, and was certainly included in the solution!\r<BR>\n" );
document.write( "\n" );
document.write( "2(3-y)-=16 <==== Line 1<BR>\n" );
document.write( "6-y-3y=16 <===== Line 2<BR>\n" );
document.write( "6-4y=16 <======= Line 3<BR>\n" );
document.write( "As seen above, the error was made in Line 2 as he DISTRIBUTED the 2 to the (3 - y), but got 6 - y instead of 6 - 2y. That's where the TRUE error lies!<BR>\n" );
document.write( "That's all thatw's asked - to find the ERROR! Nothing else!! </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );