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25 August, 18:48

Simplify the expression - 3a+5 (a-1) - 7 and then evaluate the solution to part b if a = - 5

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Answers (2)
  1. 25 August, 20:14
    0
    Just distribute the 5 and then combine like terms
  2. 25 August, 20:49
    0
    Part 1:

    -3a+5 (a-1) - 7=

    -3a+5a-5-7=

    2a-11

    Part 2:

    a=-5

    2 (-5) - 11=

    -10-11=

    -21
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