California Assessment of Student Performance and Progress (CAASPP) Math Practice Exam

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

1. 10

2. 13

3. 8

4. 15

The correct answer is: 13

To find the value of the expression \(2x + 3\) when \(x = 5\), we first substitute the value of \(x\) into the expression. Starting with the expression: \[ 2x + 3 \] we substitute \(5\) for \(x\): \[ 2(5) + 3 \] This simplifies to: \[ 10 + 3 \] Adding these together gives: \[ 13 \] Thus, the value of \(2x + 3\) when \(x = 5\) is \(13\). This confirms that the correct answer is indeed 13, as it accurately reflects the result obtained from applying the value of \(x\) to the expression.