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If x = -3 and y = -2, evaluate the expression xy - 4 If x = 3 and y = -7 evaluate the expression 2 - xy If x = -3 and y = -2, evaluate the expression x - |x - y | If x = 3 and y = -2, evaluate the expression x - |x - y | If m = -6 and n = -4, evaluate the expression m - |m - n | If c = -8 and t = -5 evaluate the expression |c| • t ÷ 10 If x = 5, y = -2, and z = -1, evaluate the expression of xyz If a = 4 and b = -8 2a + b |