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tim@ggc.edu > addThreeNums
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Add three numbers and return the result


addThreeNums(1, 2, 3) → 6
addThreeNums(2, 4, 6) → 12
addThreeNums(3, 5, 7) → 15

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public int addThreeNums( int x, int y, int z ) { }

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