document.write( "Question 858844: How many grams of salt must be added to 90 grams of a 20% salt solution to make a 25% salt solution? \n" ); document.write( "
Algebra.Com's Answer #517411 by josgarithmetic(39617)\"\" \"About 
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m = mass of salt to add.
\n" ); document.write( "\"%2890%2A20%2Bm%29%2F%28m%2B90%29=25\";
\n" ); document.write( "Solve for m.
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