document.write( "Question 1108649: Jen Butler has been pricing​ Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 80Two adults and three children must pay $ 57.  Find the price of the​ adult's ticket and the price of a​ child's ticket. \n" ); document.write( "
Algebra.Com's Answer #723676 by josgarithmetic(39617)\"\" \"About 
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a adult price
\n" ); document.write( "c child price\r
\n" ); document.write( "\n" ); document.write( "\"system%283a%2B4c=80%2C2a%2B3c=57%29\"\r
\n" ); document.write( "\n" ); document.write( "-\r
\n" ); document.write( "\n" ); document.write( "\"%283a%2B4c%29-%282a%2B3c%29=80-57\"\r
\n" ); document.write( "\n" ); document.write( "\"a%2Bc=23\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Now try the system instead, \"system%282a%2B3c=57%2Ca%2Bc=23%29\".
\n" ); document.write( "Start with Elimination Method.
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