Question

The difference of a number and eight is $17$. Find the number.

Short answer

The required number is $25$.

Step-by-step solution

Step 1. Given information.

Assume nto be the required number.

From the question,

$n-8=17$

Add $8$on both sides,

$$\begin{gathered} n-8+8=17+8 \\ n=25 \end{gathered}$$

Step 2. Check the answers.

Consider the given question,

The difference of a number and eight is $17$. Then,

$$\begin{gathered} 25-8=17 \\ 17=17 \end{gathered}$$

Hence, $LHS=RHS$and proved.