The school buys 40 fountain pens and 28 ballpoint pens for the first time, and the total cost is 260 yuan. The second time the school buys 56 fountain pens and 56 ballpoint pens, it costs 376 yuan. How much is each pen?
学校第一次买40支钢笔和28支圆珠笔，共用去260元，第二次买56支钢笔和56支圆珠笔共用去376元，每支钢笔多少元？
<gadget id="calculator">260 * 2</gadget>
<output>520</output>

<gadget id="calculator">520 - 376</gadget>
<output>144</output>

<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">80 - 56</gadget>
<output>24</output>

<gadget id="calculator">144 / 24</gadget>
<output>6</output>

<result>6</result>