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14 June, 19:51

Which expressions are equivalent to - 2.5 (1 - 2n) - 1.5n?

choose ALL that are equivalent

a. - 2.5n - 3.5n

b. - 2.5n + 3.5n

c. - 2.5 - 6.5n

d. - 2.5 - n (5 - 1.5)

e. - 2.5 + n (5 - 1.5)

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Answers (1)
  1. 14 June, 19:58
    0
    Distribute then add a (b-c) = ab-ac - 2.5 (1 - 2n) - 1.5n - 2.5 (1-2n) = - 2.5 - (-5n) = - 2.5+5n now add the other bit - 2.5+5n-1.5n - 2.5+3.5n B is a corect answer find others distribute and add last 2 choices D=-2.5-3.5n E=-2.5+3.5n E is correc t answers to pick are B and E
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Home » Mathematics » Which expressions are equivalent to - 2.5 (1 - 2n) - 1.5n? choose ALL that are equivalent a. - 2.5n - 3.5n b. - 2.5n + 3.5n c. - 2.5 - 6.5n d. - 2.5 - n (5 - 1.5) e. - 2.5 + n (5 - 1.5)
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