Bruce works for 5 hours on Tuesday. On Wednesday he works twice the time he works on Tuesday. On Thursday he works 2 hours less than the time he works on Wednesday. How many hours does Bruce work in all these three days?
On Wednesday, Bruce works for 2 * 5 = 
<gadget id="calculator">2*5</gadget>
<output>10</output>
10 hours.
On Thursday, Bruce works for 10 - 2 = 
<gadget id="calculator">10-2</gadget>
<output>8</output>
8 hours.
On these three days, Bruce works for 5 + 10 + 8 = 
<gadget id="calculator">5+10+8</gadget>
<output>23</output>
23 hours.

<result>23</result>