5.2 times of x minus the quotient of 1.6 divided by 5.2, the difference is 9.75, find x.
x的5.2倍减去1.6除5.2的商，差是9.75，求x．
<gadget id="calculator">5.2 / 1.6</gadget>
<output>3.25</output>

<gadget id="calculator">3.25 + 9.75</gadget>
<output>13</output>

<gadget id="calculator">13 / 5.2</gadget>
<output>2.5</output>

<result>2.5</result>