In the mid-term exam, Li Jing scored 90 points in Chinese and 92 points in mathematics. The average score of these three subjects is 93 points.
期中考试李静的成绩语文是90分，数学成绩是92分，英语成绩考多少分就可以使这三门功课的平均成绩为93分．
<gadget id="calculator">93 * 3</gadget>
<output>279</output>

<gadget id="calculator">279 - 90 - 92</gadget>
<output>97</output>

<result>97</result>