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8 January, 16:15

Solve the equation for c.

c (c + 3) - c (c - 4) = 9c - 16

1.6

2.6

2

8

+1
Answers (1)
  1. 8 January, 16:20
    0
    Answer = 8

    Because:

    c (c + 3) - c (c-4) = 9c - 16

    c^2 + 3c - c^2 + 4c = 9c - 16

    3c + 4c = 9c - 16

    7c = 9c - 16

    7c + 16 = 9c

    16 = 2c

    8 = c
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