# If 3 times a number minus 2 equals 13, what is the number?

Mar 20, 2018

The number is $5$

#### Explanation:

If we take the number as $x$, your sum looks like;

$\left(3 \cdot x\right) - 2 = 13$

We can move the $x$ to the other side of the equation by adding $2$ to both sides. The new equation will look like this;

$\left(3 \cdot x\right) - 2 + 2 = 13 + 2$

This equals;

$3 \cdot x = 15$

We then want to know that the actual value of $x$ would have to be. Therefore, we divide both sides by $3$.

$\frac{3 \cdot x}{3} = \frac{15}{3}$

This equals;

$x = 5$

Therefore, the number is $5$.