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In the equation 3x - 4 = 19, what is the value of x?

  1. 3

  2. 4

  3. 19

  4. 23

The correct answer is: 23

In the given equation, we are trying to determine the value of x. The incorrect answer choices A, B, and C are all numbers that could potentially satisfy the equation if substituted in for x, but they are not the correct values. This is because in the equation, 3x - 4 is equal to 19, meaning that x must be a number greater than 4. The correct answer, 23, satisfies this requirement and when substituted into the equation, 3(23) - 4 equals 19. Therefore, D is the correct option.