Set up the integral (do not evaluate) in (u, v) coordinates to find the integral SSRx + y dA, where R is the parallelogram with vertices (0, 0), (1, −1), (5, 0), (4, 1). Make the substitution x = 4s + t, y = s − t. You must draw the correspoding s, t region.   The S' are the integral symbol since I cannot find copy paste versions of them on the internet.

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