If x = 5, what is the value of 2x + 3?

Study for the HSC Mathematics Standard 2 Exam. Utilize flashcards and multiple choice questions, each with hints and explanations. Prepare confidently for your exam success!

To find the value of the expression (2x + 3) when (x = 5), begin by substituting 5 into the expression.

First, calculate (2x):

[

2x = 2 \times 5 = 10.

]

Next, add 3 to this result:

[

2x + 3 = 10 + 3 = 13.

]

This gives us the final value of the expression as 13. Thus, the correct answer is indeed 13. The reasoning clearly shows that substituting the value of (x) correctly into the expression yields the desired result.

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