Find the value of the unknown x. (1/4)x: 5=5.
求未知数x的值．(1/4)x：5=5．
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">25 / (1/4)</gadget>
<output>100</output>

<result>100</result>