Calculation: If (x+3.75)*20%=9.5, then x=how much.
计算：若(x+3.75)*20%=9.5，则x=多少．
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3.75 * (1/5)</gadget>
<output>0.75</output>

<gadget id="calculator">9.5 - 0.75</gadget>
<output>8.75</output>

<gadget id="calculator">8.75 / (1/5)</gadget>
<output>43.75</output>

<result>43.75</result>