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21 April, 15:11

Simplify: - 4 (x - 5) + 3 (a - 7)

A.

-4x + 3a + 41

B.

-4x + 3a + 1

C.

-4x + 3a - 1

D.

-4x + 3a - 41

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Answers (2)
  1. 21 April, 15:13
    0
    -4 (x - 5) + 3 (a - 7)

    First, expand your problem. / Your problem should look like: - 4x + 20 + 3a - 21

    Second, simplify. / Your problem should look like: - 4x + 3a - 1

    Answer: - 4x + 3a - 1 (C)
  2. 21 April, 15:20
    0
    -4 (x-5) + 3 (a-7)

    Distribute:

    = (-4) (x) + (-4) (-5) + (3) (a) + (3) (-7)

    =-4x+20+3a+-21

    Combine Like Terms:

    =-4x+20+3a+-21

    = (3a) + (-4x) + (20+-21)

    =3a+-4x+-1
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