document.write( "Question 453752: How do you get $180 using 12 bills
\n" ); document.write( "With only 5$ and 20$ dollar bill ?
\n" ); document.write( "

Algebra.Com's Answer #311809 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
x+y=12
\n" ); document.write( "5x+20y=180
\n" ); document.write( "5x+5y=60
\n" ); document.write( "15y=120
\n" ); document.write( "y=8
\n" ); document.write( "x=4
\n" ); document.write( "There are 4 $5 bills are 8 $20 bills..
\n" ); document.write( "
\n" );