Given that 17-2x=9, what is 8(x-4) equal to?
已知17-2x=9，则8(x-4)等于多少
<gadget id="calculator">17 - 9</gadget>
<output>8</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 - 4</gadget>
<output>0</output>

<gadget id="calculator">8 * 0</gadget>
<output>0</output>

<result>0</result>