document.write( "Question 64151: Theresa sold three different magazine subscribtions for $28,$18,and $27. She sold three fewer of the $28 subscriptions than of the $18 subscriptions and a total of 34 subscriptions. If her total sales wer $819, how many $27 subscriptions did Theresa sell? \n" ); document.write( "
Algebra.Com's Answer #44807 by stanbon(75887)\"\" \"About 
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Theresa sold three different magazine subscribtions for $28,$18,and $27. She sold three fewer of the $28 subscriptions than of the $18 subscriptions and a total of 34 subscriptions. If her total sales wer $819, how many $27 subscriptions did Theresa sell?
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\n" ); document.write( "Let number of of $18 subs be \"x\"; value is 18x dollars
\n" ); document.write( "Number of $28 subs is \"x-3\"; value is 28(x-3)=28x-84 dollars
\n" ); document.write( "Number of $27 subs is \"34-x-(x-3): value is 27(37-2x)=999-54x dollars
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\n" ); document.write( "EQUATION:
\n" ); document.write( "value + value + value = $819
\n" ); document.write( "18x+28x-84+999-54x=819
\n" ); document.write( "-8x=-96
\n" ); document.write( "x=12 subsciptions sold at $18
\n" ); document.write( "37-2x==37-24=13 substitutions sold at $27
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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