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8 December, 10:32

Solve this equation: 2s + s + 12 = 132.

A. s = 40

B. s = 120

C. s = 9

D. s = - 30

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Answers (2)
  1. 8 December, 10:40
    0
    2s + s + 12 = 132

    ⇒ (2s + s) + 12 = 132 (combine like terms)

    ⇒ 3s + 12 = 132

    ⇒ 3s = 132 - 12 (inverse operation)

    ⇒ 3s = 120

    ⇒ s = 120/3

    ⇒ s = 40

    Final answer: A. s = 40.
  2. 8 December, 10:42
    0
    If you would like to solve the equation 2 * s + s + 12 = 132, you can do this using the following steps:

    2 * s + s + 12 = 132

    3 * s = 132 - 12

    3 * s = 120 / 3

    s = 120/3

    s = 40

    The correct result would be A. s = 40.
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