Originally Posted by

**Chris L T521** Let's break it down:

The sum of a number and six, multiplied by two results in twenty-two.

Let $\displaystyle n$ be this mystery number.

Then, sum of a number and six can be represented mathematically as $\displaystyle n+6$

Now, multiplied by two means that we take the previous result, and double it. Mathematically, it would be the same as saying $\displaystyle 2\left(n+6\right)$

Finally, the previous result results in twenty-two. This now gives us the equation $\displaystyle 2\left(n+6\right)=22$

Now you can solve for n.

EDIT: Soroban beat me.