A number is doubled and 9 is added. If the resultant is trebled, it becomes 57. What is that number?  Options:
A) 5	B) 6	C) 8	D) 7	E) 4
Let the number be x. Then,   3(2x + 9) = 57   2x = 10 =&gt; x = 5   5NSWER:5
<result>A</result>
A number is doubled and 9 is added. If the resultant is trebled, it becomes 57. What is that number?