document.write( "Question 841334: in chemistry class, 21 liters of 12% alcohol solution must be mixed with 20% solution to get 14% solution. How many liters of the 20% solution are needed? \n" ); document.write( "
Algebra.Com's Answer #506792 by ewatrrr(24785)\"\" \"About 
You can put this solution on YOUR website!
 
\n" ); document.write( "Hi,
\n" ); document.write( "21 liters of 12% alcohol solution must be mixed with 20% solution to get 14% solution.
\n" ); document.write( "How many liters \"highlight_green%28x%29\"of the 20% solution are needed?
\n" ); document.write( "Set UP
\n" ); document.write( " alcohol = alcohol
\n" ); document.write( " .12*21 + .20x = .14(21+x)
\n" ); document.write( " x = .02*21/.06 \n" ); document.write( "
\n" );