pile of apples is given to three people, A, B, and C, and all three get the same number of apples. Later, A gave B 2 apples, B gave C 6 apples, and C gave A 8 apples. At this time, the number of apples in A was exactly twice that of C. So how many apples does B have at this time?
一堆苹果分给甲、乙、丙三人，三人分得的数量一样多．后来，甲给了乙2个，乙给了丙6个，丙又给了甲8个，此时甲的苹果数恰好是丙的2倍．那么此时乙有多少个苹果？
<gadget id="calculator">8 - 2</gadget>
<output>6</output>

<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<gadget id="calculator">2 - 1</gadget>
<output>1</output>

<gadget id="calculator">8 / 1</gadget>
<output>8</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

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

<gadget id="calculator">8 + (-2)</gadget>
<output>6</output>

<result>6</result>