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

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Answer 1 · 2018-03-20T14:46:55

The number is $5$

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

$(3 * x) - 2 = 13$

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;

$(3 * x) - 2 + 2 = 13 + 2$

This equals;

$3 * x = 15$

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

$(3 * x)/3 = 15/3$

This equals;

$x = 5$

Therefore, the number is $5$ .