document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=68125>Question 68125</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Find the cost of the chocolate bar and the cost of a pack of gum.\r<BR>\n" );
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document.write( "I am a bit confused on this can someone help with this. Thanks </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #48402 by </B><A HREF=/tutors/aboutme.mpl?userid=ptaylor><B>ptaylor(2198)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ptaylor><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=ptaylor><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=48402\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let x=cost of Chocolate bars<BR>\n" );
document.write( "And y=cost of gum\r<BR>\n" );
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document.write( "3x+y=$1.75--------------------eq (1)<BR>\n" );
document.write( "2x+4y=$2.00-------------------eq (2)\r<BR>\n" );
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document.write( "From eq (1), we see that y=1.75-3x;  substitute this into (2)\r<BR>\n" );
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document.write( "2x+4($1.75-3x)=$2.00 clear parens\r<BR>\n" );
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document.write( "2x+$7.00-12x=$2.00  subtract 7.00 from both sides:\r<BR>\n" );
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document.write( "-10x=-$7.00+$2.00<BR>\n" );
document.write( "-10x=-$5.00<BR>\n" );
document.write( "x=$0.50-------------cost of Chocolate bars\r<BR>\n" );
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document.write( "substitute x=$0.50 into eq (1):\r<BR>\n" );
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document.write( "3($0.50)+y=$1.75\r<BR>\n" );
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document.write( "$1.50+y=$1.75   subtract $1.50 from both sides:\r<BR>\n" );
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document.write( "y=$0.25-----------------------------------------cost of gum\r<BR>\n" );
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document.write( "ck\r<BR>\n" );
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document.write( "3($0.50)+$0.25=$1.75<BR>\n" );
document.write( "$1.75=$1.75\r<BR>\n" );
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document.write( "and\r<BR>\n" );
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document.write( "2($0.50)+4($0.25)=$2.00\r<BR>\n" );
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document.write( "$1.00+$1.00=$2.00<BR>\n" );
document.write( "$2.00=$2.00\r<BR>\n" );
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document.write( "Hope this helps-----ptaylor\r<BR>\n" );
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document.write( " </SPAN>\n" );
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