Twenty years ago, Shane was 2 times older than Garret is now. If Garret is currently 12, how old is Shane now?
Twenty years ago, Shane was 12 * 2 = 
<gadget id="calculator">12*2</gadget>
<output>24</output>
24 years old.
Shane is currently 24 + 20 = 
<gadget id="calculator">24+20</gadget>
<output>44</output>
44 years old.

<result>44</result>