document.write( "Question 459885: Kara purchased train tickets for 3 adults and 4 children. The total cost for 3 adults and 4 children
\n" ); document.write( "was $136. Brian purchased 2 adult tickets and 3 children tickets for $97. Find the price of an
\n" ); document.write( "adult’s ticket.
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Algebra.Com's Answer #315386 by mananth(16946)\"\" \"About 
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adult ticket $ x
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\n" ); document.write( "3x+4y=136 .............1 Kara
\n" ); document.write( "2x+3y=97 .............2 Brian
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\n" ); document.write( "multiply (1)by -3
\n" ); document.write( "Multiply (2) by 4
\n" ); document.write( "-9x-12y=-408
\n" ); document.write( "8x+12y= 388
\n" ); document.write( "Add the two equations
\n" ); document.write( "-x=-20
\n" ); document.write( "/-1
\n" ); document.write( "x=20
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "3x+4y=136
\n" ); document.write( "60+4y=136
\n" ); document.write( "4y=136-60
\n" ); document.write( "4y=76
\n" ); document.write( "y=19
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