"6 times x plus the product of 16.5 and 4, the sum is 120." What should x be equal to?
"x的6倍加上16.5与4的积，和是120．"x应等于多少．
<gadget id="calculator">16.5 * 4</gadget>
<output>66</output>

<gadget id="calculator">120 - 66</gadget>
<output>54</output>

<gadget id="calculator">54 / 6</gadget>
<output>9</output>

<result>9</result>