Question

In the following exercises, solve each number word

The difference of a number and $12$is three. Find the number.

Short answer

The number is $15$.

Step-by-step solution

Step 1. Given Information  

We are given that the difference of a number and $12$is three.

We have to find the number.

Step 2. Forming the equation  

Let the number bex,

So, the equation will be,

$x-12=3$

Step 3. Solving the equation  

Adding$12$on both sides, we get

$$\begin{gathered} x-12=3 \\ x=3+12 \\ x=15 \end{gathered}$$

Hence, the number is $15$.

Step 4. Checking the solution  

Putting the value of xin the equation, we get

$$\begin{gathered} x-12=3 \\ 15-12=3 \\ 3=3 \\ LHS=RHS \end{gathered}$$

Hence the solution is correct.