A shop buys a batch of pens, the purchase price is 11.9 yuan each, and the selling price is 14 yuan each. Now after selling a part, when there are 10 pens left, not only the cost is recovered, but also a profit of 7 yuan. How many pens did the store buy in total? branch?
某商店购进一批笔，进价每支11.9元，售价每支14元，现在售出一部分后，当还剩10支时，不仅收回了成本，还盈利7元，商店共购笔多少支？
<gadget id="calculator">11.9 * 10</gadget>
<output>119</output>

<gadget id="calculator">7 + 119</gadget>
<output>126</output>

<gadget id="calculator">14 - 11.9</gadget>
<output>2.1</output>

<gadget id="calculator">126 / 2.1</gadget>
<output>60</output>

<gadget id="calculator">60 + 10</gadget>
<output>70</output>

<result>70</result>