Solve the equation: 100*0.5+(x-100)*0.4=0.48x.
解方程：100*0.5+(x-100)*0.4=0.48x．
<gadget id="calculator">100 * 0.5</gadget>
<output>50</output>

<gadget id="calculator">100 * 0.4</gadget>
<output>40</output>

<gadget id="calculator">50 - 40</gadget>
<output>10</output>

<gadget id="calculator">0.48 - 0.4</gadget>
<output>0.08</output>

<gadget id="calculator">10 / 0.08</gadget>
<output>125</output>

<result>125</result>