Solve the equation: (18/(0.6))=((7.5)/(x)).
解方程：(18/(0.6))=((7.5)/(x))．
<gadget id="calculator">7.5 * 0.6</gadget>
<output>4.5</output>

<gadget id="calculator">4.5 / 18</gadget>
<output>0.25</output>

<result>0.25</result>