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5 June, 22:30

What is the value of a?

-2 (a - 8) + 6a = 36

+5
Answers (2)
  1. 5 June, 23:59
    0
    -2 (a - 8) + 6a = 36

    -2 (a) + 2 (8) + 6a = 36

    -2a + 16 + 6a = 36

    -2a + 6a + 16 = 36

    4a + 16 = 36

    - 16 - 16

    4a = 20

    4 4

    a = 5
  2. 6 June, 00:43
    0
    Distribute - 2

    -2a + 16 + 6a = 36

    Add like terms.

    4a + 16 = 36

    Factor out 4

    4 (a+4) = 36

    Divide both sides by 4

    a + 4 = 9

    Subtract 4 on both sides

    a = 5
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