y 2x + 1 x 1 1 y 3 x + 2y 9 x + 2y 12 f(x, y) = 2x - 3y f(x, y) = 3x + y
Chapter 3, Problem 2(choose chapter or problem)
y 2x + 1 x 1 1 y 3 x + 2y 9 x + 2y 12 f(x, y) = 2x - 3y f(x, y) = 3x + y
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