Teacher Zhang bought 4 fountain pens and 5 ballpoint pens and spent a total of 34 yuan. Teacher Wang bought 3 such pens and 5 such ballpoint pens and spent a total of 28 yuan. How much is one such pen?
张老师买4支钢笔和5支圆珠笔共花34元，王老师买3支这样的钢笔和5支这样的圆珠笔共花28元，一支这样的钢笔多少元？
<gadget id="calculator">34 - 28</gadget>
<output>6</output>

<gadget id="calculator">4 - 3</gadget>
<output>1</output>

<gadget id="calculator">6 / 1</gadget>
<output>6</output>

<result>6</result>