document.write( "Question 15814: ok i have to define a variable and write an equation to model the situation.then solve...here is the problem:
\n" ); document.write( "ENTERTAINMENT: movie tickets for an adult and three children cost $20. An adults ticket costs $2 more than a child's ticket. find the cost of an adult's ticket.
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Algebra.Com's Answer #7793 by elima(1433)\"\" \"About 
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ENTERTAINMENT: movie tickets for an adult and three children cost $20. An adults ticket costs $2 more than a child's ticket. find the cost of an adult's ticket.\r
\n" ); document.write( "\n" ); document.write( "Let x = childs ticket; x+2=adult ticket
\n" ); document.write( "And they bought 3 child tickets and 1 adult, so we have;
\n" ); document.write( "3x+(x+2)=20
\n" ); document.write( "Add like terms;
\n" ); document.write( "4x+2=20;
\n" ); document.write( "subtract 2 from both sides;
\n" ); document.write( "4x+2-2=20-2
\n" ); document.write( "4x=18
\n" ); document.write( "Divide each side by 4;
\n" ); document.write( "\"4x%2F4\"=\"18%2F4\"
\n" ); document.write( "x=4.5
\n" ); document.write( "So a childs ticket cost $4.50;
\n" ); document.write( "That means the adult ticket would be;
\n" ); document.write( "4.5+2=$6.5
\n" ); document.write( "Hope you understand
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