When Xiao Ming’s father took a taxi to work in the morning and arrived at the unit, the meter showed 14.4 yuan. The starting price of the taxi was 6 yuan (within 3 kilometers), and the average charge was 1.2 yuan per kilometer for more than 3 kilometers. How many kilometers is the unit?
小明爸爸早晨上班乘出租车到达单位时，计价器上显示是14.4元，出租车起步价为6元(3千米以内)，超过3千米，平均每千米收1.2元，小明家离爸爸单位多少千米？
<gadget id="calculator">14.4 - 6</gadget>
<output>8.4</output>

<gadget id="calculator">8.4 / 1.2</gadget>
<output>7</output>

<gadget id="calculator">7 + 3</gadget>
<output>10</output>

<result>10</result>