document.write( "Question 937361: Faith mixes 14 liters of 12% acid solution with a 30% acid solution to make an 18% acid solution. How many liters of 30% solution did she use? \n" ); document.write( "
Algebra.Com's Answer #570858 by TimothyLamb(4379)\"\" \"About 
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x = liters of 30% acid
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\n" ); document.write( "0.12*14 + 0.30x = 0.18(x + 14)
\n" ); document.write( "1.68 + 0.30x = 0.18x + 2.52
\n" ); document.write( "0.30x - 0.18x = 2.52 - 1.68
\n" ); document.write( "0.12x = 2.52 - 1.68
\n" ); document.write( "x = (2.52 - 1.68)/0.12
\n" ); document.write( "x = 7
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\n" ); document.write( "answer:
\n" ); document.write( "7 liters of 30% acid
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