Question

The sum of three times a number and eight is 23. Find the number.

Short answer

The number is 5.

Step-by-step solution

Step 1. Given information

The sum of three times a number and eight is 23.

Step 2. Forming linear equation

Let the number be $x.$Then,

$3\left(number\right)+8=23$

Step 3. Solving linear equation

$$\begin{gathered} 3x+8=23 \\ 3x=23-8 \\ 3x=15 \\ x=5 \end{gathered}$$