Solve the equation: 50%X-(1/4)X=10.
解方程：50%X-(1/4)X=10．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">10 / (1/4)</gadget>
<output>40</output>

<result>40</result>