A certain factory has three workshops, the number of people in the first workshop and the second workshop is equal, the number of people in the third workshop accounts for 35% of the total number of the three workshops, and there are 3 more people than the first workshop. How many people are there in the three workshops?
某工厂有三个车间，一车间和二车间的人数相等，三车间的人数占三个车间总人数的35%，并且比一车间多3人．三个车间共有多少人？
<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (7/20)</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">(13/20) / 2</gadget>
<output>13/40 = around 0.325</output>

<gadget id="calculator">(7/20) - (13/40)</gadget>
<output>1/40 = around 0.025</output>

<gadget id="calculator">3 / (1/40)</gadget>
<output>120</output>

<result>120</result>