SOLUTION: How much water must be added to one gallon of 8% saline solution to get a 2% saline solution?

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Question 325372: How much water must be added to one gallon of 8% saline solution to get a 2% saline solution?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
How much water must be added to one gallon of 8% saline solution to get a 2% saline solution?
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Equation:
salt + salt = salt
0.08*1 + 0*x = 0.02(1+x)
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Multiply thru by 100 to get:
8 + 0 = 2 + 2x
2x = 6
x = 3 gallons (amt. of water that must be added)
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Cheers,
Stan H.