The average score of the two subjects of Chinese and Mathematics is 90, and the average score of the three subjects of English is 86. What is the score of English?
语文、数学两门的平均分是90，加上英语三门的平均分是86，英语得多少分．
<gadget id="calculator">86 * 3</gadget>
<output>258</output>

<gadget id="calculator">90 * 2</gadget>
<output>180</output>

<gadget id="calculator">258 - 180</gadget>
<output>78</output>

<result>78</result>