document.write( "Question 377261: how many liters of 40% acid solution must be added to 12 liters of a 20% solution to obtain a 25% solution?
\n" ); document.write( "I have an idea of what am i suppose to do but the only thing i am having trouble is how to right the equation to solve the problem.
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Algebra.Com's Answer #268090 by ankor@dixie-net.com(22740)\"\" \"About 
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how many liters of 40% acid solution must be added to 12 liters of a 20%
\n" ); document.write( " solution to obtain a 25% solution?
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\n" ); document.write( "Let x = amt of 40% solution
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\n" ); document.write( "The equation
\n" ); document.write( ".40x + .20(12) = .25(x + 12)
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