document.write( "Question 783440: Ariel purchased x student tickets for $7 each and y adult tickets for $9 each at the movie theater. She spent a total of $120 and bought 16 tickets in all. The system of equations shown below can be used to determine how many of each type of ticket Ariel purchased.\r
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Algebra.Com's Answer #476761 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
x + y = 16...1
\n" ); document.write( "7x + 9y = 120...2
\n" ); document.write( "Multiply (1) by 9
\n" ); document.write( "9x + 9y = 144...3
\n" ); document.write( "7x + 9y = 120...2
\n" ); document.write( "Subtract (2) from (3)
\n" ); document.write( "2x = 24
\n" ); document.write( " x = 12
\n" ); document.write( "Substitute x = 12 into (1)
\n" ); document.write( "12 + y = 16
\n" ); document.write( " y = 16 - 12
\n" ); document.write( " y = 4
\n" ); document.write( "Ariel purchased 12 Student
\n" ); document.write( "tickets and 4 Adult tickets
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-)
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