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George saves nickels and dimes for tolls. If he has 8 coins worth $2.60,how many are nickels and how many are dimes? Answer this question by using system of equation.

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โˆ™ 2010-02-05 02:12:14
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Q: How do you solve by substitution y equals x-1?
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Solve the equation by substitution method x-y equals 5?

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