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Today, 11:18

Which of the following expressions are equivalent to - 3.5 (2 - 3n) - 2.5n?

A: - 7 - 8n

B: - 7 + 8n

C: - 7 - 13n

D: - 7 - n (10.5 - 2.5)

E : - 7 + n (10.5 - 2.5

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Answers (2)
  1. Today, 14:11
    0
    Simplify step-by-step.

    -3.5 (2-3n) - 2.5n

    Distribute:

    = (-3.5) (2) + (-3.5) (-3n) + - 2.5n

    =-7+10.5n+-2.5n

    Combine Like Terms:

    =-7+10.5n+-2.5n

    = (10.5n+-2.5n) + (-7)

    =8n+-7

    Which is same as option B).
  2. Today, 14:20
    0
    -3.5 (2-3n) - 2.5n simplifies to - 7+10.5n-2.5n, or - 7+8n. B is the correct answer.
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