document.write( "Question 398078: How many gallons of a 14%-salt solution must be mixed with 6 gallons of a 21%-salt solution to obtain a 17%-salt solution? \n" ); document.write( "
Algebra.Com's Answer #282071 by robertb(5830)\"\" \"About 
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0.14x + 0.21*6 = 0.17(x + 6)
\n" ); document.write( "==> 0.14x + 1.26 = 0.17x +1.02
\n" ); document.write( "==> -0.03x = -0.24
\n" ); document.write( "==> x = 8 gallons of the 14% salt solution
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