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If 7 is subtracted from twice a certain number x, the result is at most...

Mathematics
NECO 2005

If 7 is subtracted from twice a certain number x, the result is at most 5. What is the range of the number?

  • A. x < 2
  • B. x < 3
  • C. x < 4
  • D. x < 5
  • E. x < 6
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Correct Answer: Option E
Explanation

At most 5 = less than or equal to 5

2x - 7 ≤ 5

2x ≤ 5 + 7

2x ≤ 12

divide through by 2

x ≤ 6

 


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