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Mathematics, 29.12.2019 20:31 zariahj044
If x+y = 6, y+z = 7, and z+x = 9, what is the average (arithmetic mean) of x, y, and z?
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If x+y = 6, y+z = 7, and z+x = 9, what is the average (arithmetic mean) of x, y, and z?...
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