A judge oversaw seventeen court cases. Two were immediately dismissed from court. Two-thirds of the remaining cases were ruled innocent, one ruling was delayed until a later date, and the rest were judged guilty. On how many cases did the judge rule guilty?
The judge dismissed 2 cases, leaving 17 - 2 = 
<gadget id="calculator">17-2</gadget>
<output>15</output>
15 cases.
Of the remaining 15 cases, 2 / 3 * 15 = 
<gadget id="calculator">2/3*15</gadget>
<output>10</output>
10 were ruled innocent.
One ruling was delayed, so the judge ruled guilty on 15 - 10 - 1 = 
<gadget id="calculator">15-10-1</gadget>
<output>4</output>
4 cases.

<result>4</result>