document.write( "Question 825950: How much pure alcohol must be added to a mixture of 12 liters of alcohol and 30 liters of water to produce a 60% alcohol solution. \n" ); document.write( "
Algebra.Com's Answer #497727 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
One material quantity known, the other quantity unknown, call x the unknown.\r
\n" ); document.write( "\n" ); document.write( "\"%2812%2Bx%29%2F%2812%2B30%2Bx%29=0.6\" which is \"alcohol%2Fsolution\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%2812%2Bx%29%2F%28x%2B42%29=0.6\"
\n" ); document.write( "\"x%2B12=%280.6%29%28x%2B42%29\"
\n" ); document.write( "\"x%2B12=0.6x%2B25.2\"
\n" ); document.write( "\"0.4x=25.2-12\"
\n" ); document.write( "\"0.4x=13.2\"
\n" ); document.write( "\"highlight%28x=33%29\"
\n" ); document.write( "
\n" );