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10 December, 09:20

Which of the following is equivalent to the equation - 5 (3x - 8) = - 45?

A. - 15x - 40=-45

B. - 15x + 40 = - 45

C. - 15x - 8 = - 45

D. 15x + 8 = - 45

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Answers (1)
  1. 10 December, 09:38
    0
    Distributive property is

    a (b+c) = ab+ac so

    first, distribute

    remember than (-) times (-) = (+)

    -5 (3x-8) = (-5) (3x) + (-5) (-8) = - 15x + (+40) = - 15x+40

    so it is - 15x+40=-45

    the answe ris B
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