Question

A. 50 B. 60 . I think of a number. I subtract 14 from the number and then tripled the difference. The result is two- third of the number. Find the original number. A. 18 B. 12 C. 10 b.5 E. 21​

Answer 1

A. 18

Explanation:

Let the number you are thinking of be n.

subtract 14: n - 14

tripled the difference: 3(n - 14)

result is two-thirds of the number: 3(n - 14) = 2/3 n

solving 3(n - 14) = 2/3n:

3n - 42 = 2n/3

9n - 126 = 2n

7n = 126

n = 18

Answer: A. 18

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