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How many solutions are there to the equation

u + v + w + x + y + z = 7

where u, v, w, x, y, and z are nonnegative integers, and x is at most 2 or y is at least 3?

 May 19, 2023
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[11 C 5]  +  [11 C 4] =462 + 330 = 792 solutions.

 May 20, 2023

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