document.write( "Question 104031: Anna has 12 bills in her wallet, some $5 and some $10. The total value of the bills is $100. How many of each bill does Anna have?
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Algebra.Com's Answer #75707 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
let x=fives so 12-x=tens\r
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\n" ); document.write( "\n" ); document.write( "5x+10(12-x)=100 ... 5x+120-10x=100
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