For two numbers a and b, it is stipulated that a□b=ax-2b, and it is known that 58□75=24, then what is the value of 95□84.
对于两个数a，b规定a□b=ax-2b，并且已知58□75=24，那么95□84的值是多少．
<gadget id="calculator">95 * 3</gadget>
<output>285</output>

<gadget id="calculator">84 * 2</gadget>
<output>168</output>

<gadget id="calculator">285 - 168</gadget>
<output>117</output>

<result>117</result>