An express train and a slow train depart from two stations A and B respectively at the same time and meet at a distance of 5 kilometers from the midpoint. It is known that the speed ratio of fast and slow trains is 3:2, how many kilometers are the distance between A and B? (solution by equation)
一辆快车与一辆慢车分别从甲、乙两站同时相对开出，在距中点5千米处相遇．已知快、慢车的速度比是3：2，甲、乙两站相距多少千米？(用方程解)
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">(3/2) - 1</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2 / (1/2)</gadget>
<output>4</output>

<gadget id="calculator">5 * 4</gadget>
<output>20</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<gadget id="calculator">20 + 20 + 10</gadget>
<output>50</output>

<result>50</result>