4.4 is 3.2 less than 4 times of a number, find this number. (Solution of column equation)
4.4比一个数的4倍少3.2，求这个数．(列方程解)
<gadget id="calculator">4.4 + 3.2</gadget>
<output>7.6</output>

<gadget id="calculator">7.6 / 4</gadget>
<output>1.9</output>

<result>1.9</result>