John visits three different countries.  He stays in the first country for 2 weeks and he spends twice as long in each of the other two countries.  How much time does he spend on the trip?
He spends 2*2=
<gadget id="calculator">2*2</gadget>
<output>4</output>
4 weeks in the other two countries.
So he spends 2*4=
<gadget id="calculator">2*4</gadget>
<output>8</output>
8 weeks in those countries combined.
That means he is gone for 2+8=
<gadget id="calculator">2+8</gadget>
<output>10</output>
10 weeks.

<result>10</result>