A passenger car departs from Suixi to Guangzhou, and has traveled the entire distance (1/5). After another 165 kilometers, it will travel half of the distance. How many kilometers is the journey from Suixi to Guangzhou?
一辆客车从遂溪出发开往广州，已经行驶了全程的(1/5)，再走165千米就行驶了全程的一半，遂溪到广州全程多少千米？
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/2) - (1/5)</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">165 / (3/10)</gadget>
<output>550</output>

<result>550</result>