document.write( "Question 181863: Could you please explain this to me step by step so I can understand it?\r
\n" ); document.write( "\n" ); document.write( "Juan goes to a bank and gets change for a $50 bill consisting of all $5 bills and $1bills. There are 22 bills in all. How many of each kind are there? \n" ); document.write( "
Algebra.Com's Answer #136478 by Alan3354(69443)\"\" \"About 
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Juan goes to a bank and gets change for a $50 bill consisting of all $5 bills and $1bills. There are 22 bills in all. How many of each kind are there?
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\n" ); document.write( "f = $5 bills
\n" ); document.write( "n = $1 bills
\n" ); document.write( "f+n = 22 (22 bills total)
\n" ); document.write( "5f + n = 50 (each f is $5, each n is $1, and they add up to $50)
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\n" ); document.write( "We have 2 eqns in 2 unknowns.
\n" ); document.write( "Forget the money, the bills, the bank, it's a math problem now.
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\n" ); document.write( "5f + n = 50
\n" ); document.write( "f + n = 22 Subtract eqn 2 from eqn 1
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\n" ); document.write( "4f = 28
\n" ); document.write( "f = 7
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\n" ); document.write( "n = 15
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