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16 December, 02:29

8.9 - 1.4x + (-6.5x) + 3.4 simplify this expression

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Answers (2)
  1. 16 December, 02:37
    0
    12.3 - 7.9x

    Step-by-step explanation:

    I added the numbers without variables first then I added the numbers with variables:

    8.9+3.4 = 12.3

    -1.4x + - 6.5x = - 7.9x
  2. 16 December, 05:41
    0
    x = 1.6

    Step-by-step explanation:

    Simplify the expression

    8.9 - 1.4x + (-6.5x) + 3.4

    8.9 - 1.4x + (-6.5x) + 3.4

    collect like terms

    8.9 + 3.4 - 1.4x - 6.5x

    12.3 - 7.9 x = 0

    take 7.9x to the left side

    12.3 = 7.9x

    divide both sides by 7.9

    x = 12.3/7.9

    x = 1.55696202532

    x = 1.6
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