Solve the equation: 65%x-20%x=5.2.
解方程：65%x-20%x=5.2．
<gadget id="calculator">45 / 100</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">5.2 / (9/20)</gadget>
<output>11.555556</output>

<result>11.555556</result>