document.write( "Question 608842: A photographer wants to mix 4 liters of 3% solution with a 10% solution to get a 7% solution. How many liters of 10% solution must be added? \n" ); document.write( "
Algebra.Com's Answer #383406 by richwmiller(17219)\"\" \"About 
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4*.03+.1*x=(4+x)*.07
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