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Evaluate the expression for x =3.4, x=5, and x = 7.2 ​

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Final answer:

To evaluate the given expression for different values of x, we substitute the values and perform the calculations. Substituting x = 3.4, x = 5, and x = 7.2 into the expression results in 15, 23, and 34, respectively.

Step-by-step explanation:

To evaluate the expression for x = 3.4, x = 5, and x = 7.2, we substitute these values into the given expression and perform the calculations. Let's consider a general expression as an example:

Evaluate: 5x - 2

  1. For x = 3.4, substitute it in the expression: 5(3.4) - 2 = 17 - 2 = 15
  2. For x = 5, substitute it in the expression: 5(5) - 2 = 25 - 2 = 23
  3. For x = 7.2, substitute it in the expression: 5(7.2) - 2 = 36 - 2 = 34

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