Answer and explanation

Correct answer: D.

  1. Step 1: Move the constant: .
  2. Step 2: Divide by : .
Answer
.
Why not the others: is what you get if you move across without changing its sign. is what you get if you ignore the constant. is what you get if you lose the sign of the answer.

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Solve 2x - 5 = 13. | GCE O/L Mathematics (Sri Lanka)