document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1161448>Question 1161448</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I came across this question and they solved it by using the bar model.<BR>\n" );
document.write( "How do I solve this algebraically? Why do you add 6+10 to get 16?\r<BR>\n" );
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document.write( "Mr. Lee wants to buy 5 shirts. If he buys 3 shirts, he will have $6 left. If he gets all of them, he will be $10 short. How much money does Mr. Lee have?<BR>\n" );
document.write( "2 units: 6+10=16<BR>\n" );
document.write( "1 unit: 16/2=8<BR>\n" );
document.write( "Mr. Lee has $30\r<BR>\n" );
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document.write( "Mr. Lee has money for 3 shirts and $6 extra\r<BR>\n" );
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document.write( "To buy two more shirts, Mr. Lee has to use $6 leftover and find another $10 he is short of.\r<BR>\n" );
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document.write( "Thanks in advance.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #785011 by </B><A HREF=/tutors/aboutme.mpl?userid=MathTherapy><B>MathTherapy(10552)</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=785011\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "I came across this question and they solved it by using the bar model.<BR>\n" );
document.write( "How do I solve this algebraically? Why do you add 6+10 to get 16?\r<BR>\n" );
document.write( "\n" );
document.write( "Mr. Lee wants to buy 5 shirts. If he buys 3 shirts, he will have $6 left. If he gets all of them, he will be $10 short. How much money does Mr. Lee have?<BR>\n" );
document.write( "2 units: 6+10=16<BR>\n" );
document.write( "1 unit: 16/2=8<BR>\n" );
document.write( "Mr. Lee has $30\r<BR>\n" );
document.write( "\n" );
document.write( "Mr. Lee has money for 3 shirts and $6 extra\r<BR>\n" );
document.write( "\n" );
document.write( "To buy two more shirts, Mr. Lee has to use $6 leftover and find another $10 he is short of.\r<BR>\n" );
document.write( "\n" );
document.write( "Thanks in advance.<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;\">I'm not familiar with the bar model and don't have time to familiarize myself with it.<BR>\n" );
document.write( "Anyway, let the amount the person has, be A, and the cost of each shirt, S<BR>\n" );
document.write( "Then if 3 shirts are purchased, and $6 is left, we get the following equation: A - 3S = 6 ------ eq (i)<BR>\n" );
document.write( "If all 5 shirts are purchased, he's short $10, so we get the following equation: A - 5S = - 10 ------ eq (ii)<BR>\n" );
document.write( "In order to ELIMINATE A and find the cost of 1 shirt, we simply SUBTRACT eq (ii) from eq (i), which will then cause you to ADD 6 and 10.<BR>\n" );
document.write( "As a matter of fact, when you perform the subtraction, \"A\" is eliminated and you get: 2S = 16<BR>\n" );
document.write( "You would go on from there to find the cost of each shirt, and then further to find A, or the amount of money Mr. Lee has! <BR>\n" );
document.write( "And, as you already know, that's supposed to be $30. </SPAN>\n" );
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