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24 December, 13:22

Simplify the expression and then evaluate it for the given value of the variable:

12+7x - (1-3) for x=-1.7

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Answers (1)
  1. 24 December, 14:17
    0
    25.9

    Step-by-step explanation:

    12+7x - (1-3) (evaluate parentheses first)

    = 12 + 7x - (-2)

    = 12 + 7x + 2

    = 14 + 7x

    When x = 1.7, equation becomes

    14 + 7 (1.7)

    = 14 + 11.9

    = 25.9
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