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12 February, 16:21

Evaluate 5x - 2y (7x - y) for x = 7 and y = - 2.

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  1. 12 February, 17:52
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    X = 7

    y = - 2

    5x - 2y (7x-y)

    5 (7) - ((2 (-2)) (7 ((7) - (-2)))

    35 - ((-4) (49 + 2))

    35 - ((-4) (52))

    35 - (-204)

    239
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