If a = 1, b = 2, c = 3 and d = 4, evaluate (a) a + b

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If a = 1, b = 2, c = 3 and d = 4, evaluate (b) d + c

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If a = 1, b = 2, c = 3 and d = 4, evaluate (c) 2a + 2d

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If a = 1, b = 2, c = 3 and d = 4, evaluate (d) 3c - a

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If a = 1, b = 2, c = 3 and d = 4, evaluate (e) a+b+d-2c

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If a = 1, b = 2, c = 3 and d = 4, evaluate (f) 3c-4d + 5a

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If a = 1, b = 2, c = 3 and d = 4, evaluate (g) -3a-4b

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If a = 1, b = 2, c = 3 and d = 4, evaluate (h) 5d3c+ 2b

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If a = 1, b = 2, c = 3 and d = 4, evaluate (i) 4a6b+ 2d

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If a = 1, b = 2, c = 3 and d = 4, evaluate (j) 15a5c+2b-d

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