document.write( "Question 994427: The school that Beth goes to is selling tickets to a spring musical. On the first day of ticket sales the school sold
\n" ); document.write( "7 adult tickets and 4 student tickets for a total of $165. The school took in $105 on the second day by selling 3
\n" ); document.write( "adult tickets and 4 student tickets. Find the price of an adult ticket and the price of a student ticket.
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Algebra.Com's Answer #613503 by Boreal(15235)\"\" \"About 
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A is cost of adult ticket
\n" ); document.write( "S is cost of student ticket\r
\n" ); document.write( "\n" ); document.write( "7A+4S=165
\n" ); document.write( "3A+4S=105
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\n" ); document.write( "7A+4S=165
\n" ); document.write( "-3A-4S= -105, multiplying by -1
\n" ); document.write( "4A=60
\n" ); document.write( "A=$15
\n" ); document.write( "===
\n" ); document.write( "first equation
\n" ); document.write( "105+4S=65
\n" ); document.write( "4S=60
\n" ); document.write( "S=$15
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\n" ); document.write( "check with second
\n" ); document.write( "45+60=105
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\n" ); document.write( "Both groups have $15 tickets.
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