The 28 students shared a certain number of apples on average, and 7 more students came later. In this way, each person received 2 fewer apples on average than before. How many are these apples?
28个同学平均分若干个苹果，后来多来了7个同学，这样，每人平均比原来少分了2个．这些苹果有多少个．
<gadget id="calculator">2 * 28</gadget>
<output>56</output>

<gadget id="calculator">2 * 7</gadget>
<output>14</output>

<gadget id="calculator">56 + 14</gadget>
<output>70</output>

<gadget id="calculator">1 / 28</gadget>
<output>1/28 = around 0.035714</output>

<gadget id="calculator">(1/28) * 28</gadget>
<output>1</output>

<gadget id="calculator">(1/28) * 7</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) - 1</gadget>
<output>-3/4 = around -0.75</output>

<gadget id="calculator">1 + (-3/4)</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">70 / (1/4)</gadget>
<output>280</output>

<result>280</result>