4 times a number plus the product of 1.5 and 3, the sum is 8.8, find this number.
一个数的4倍加上1.5与3的积，和是8.8，求这个数．
<gadget id="calculator">1.5 * 3</gadget>
<output>4.5</output>

<gadget id="calculator">8.8 - 4.5</gadget>
<output>4.3</output>

<gadget id="calculator">4.3 / 4</gadget>
<output>1.075</output>

<result>1.075</result>