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  • Brainly User
2015-09-09T10:58:45+08:00

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Let the total number of chicken be x
     chickens sold = 2/3 (x)
     chickens left = 18

Equation:
(x - 2/3x) + 18 = x

3(x) - 2x + 3(18) = 3(x)

3x - 2x + 54 = 3x
x + 54 = 3x
3x - 2x = 54
x = 54  total number of chickens

Chickens sold: 2/3 (x)
  2/3(54) = 36

Final answer:  36 chickens were sold

To check:  36 + 18 = 54
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2015-09-10T14:15:47+08:00

1-2/3 = 1/3 = 18

18*3=54

54-18 = 36 chicken were sold

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