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Points A and B are marked on the number line. Which expression gives the distance from A to B?

Class 7Integer Expressions with BracketsIntegers
  • A
  • B5 − 7
  • C−7 + 5
  • D−7 − 5

Step-by-Step Solution

Distance = right point − left point = 5 − (−7) = 12 units. The other expressions give −2, −12 and −2, and a distance cannot be negative.
Answer: A)

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