A number is doubled and 9 is added. If the resultant is trebled, it becomes 69. What is that number?	Choose the correct choice.
A) 3.5  B) 6  C) 8  D) 7  E) 4
Let the number be x. Then,   3(2x + 9) = 69   2x = 14 =&gt; x = 7   ANSWER:7
<result>D</result>
A number is doubled and 9 is added. If the resultant is trebled, it becomes 69. What is that number?