The starting price of a taxi in a certain city (within 3 kilometers) is 5 yuan, and if it exceeds 3 kilometers and within 7 kilometers, it is calculated at 1.2 yuan per kilometer; for the part above 7 kilometers, the price is increased by 50% per kilometer. A passenger takes a taxi home from the train station and pays the driver 26 yuan. How far is it from the train station to the passenger's home?
某市的出租车起步(3千米以内)价是5元，超过3千米而7千米以内按每千米1.2元计算；7千米以上部分每千米再加价50%．一乘客从火车站乘出租车回家，付给司机26元，试计算从火车站到这位乘客家有多远？
<gadget id="calculator">7 - 3</gadget>
<output>4</output>

<gadget id="calculator">4 * 1.2</gadget>
<output>4.8</output>

<gadget id="calculator">5 + 4.8</gadget>
<output>9.8</output>

<gadget id="calculator">26 - 9.8</gadget>
<output>16.2</output>

<gadget id="calculator">50 / 100</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 + (1/2)</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">1.2 * (3/2)</gadget>
<output>1.8</output>

<gadget id="calculator">16.2 / 1.8</gadget>
<output>9</output>

<gadget id="calculator">7 + 9</gadget>
<output>16</output>

<result>16</result>