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Problem 20 - Entrance Test

Find the value of x in the equation 2x + 2 = 12

Correct: B

To solve for x, we first subtract 2 from both sides: 2x + 2 - 2 = 12 - 2, which simplifies to 2x = 10. Then, we divide both sides by 2 to isolate x: x = 10/2 = 5.