document.write( "Question 944995: Nina has $5 bills and $10 bills in her wallet. She has a total of 7 bills with a value of $55.
\n" ); document.write( "How many of each type of bill does she have?
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Algebra.Com's Answer #576362 by Fombitz(32388)\"\" \"About 
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\"F\" - number of $5 bills
\n" ); document.write( "\"T\" - number of $10 bills
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\n" ); document.write( "\n" ); document.write( "1.\"F%2BT=7\"\r
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\n" ); document.write( "\"5F%2B10T=55\"
\n" ); document.write( "2.\"F%2B2T=11\"
\n" ); document.write( "Subtract eq. 1 from eq. 2,
\n" ); document.write( "\"F%2B2T-F-T=11-7\"
\n" ); document.write( "\"T=4\"
\n" ); document.write( "Then,
\n" ); document.write( "\"F%2B4=7\"
\n" ); document.write( "\"F=3\"
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