A number is doubled and 9 is added. If resultant is trebled, it becomes 75. What is that number
Options.
A) 8
B) 10
C) 12
D) 14
E) 15
Explanation:   =&gt; 3(2x+9) = 75   =&gt; 2x+9 = 25   =&gt; x = 8   8nswer: Option 8
<result>A</result>
A number is doubled and 9 is added. If resultant is trebled, it becomes 75. What is that number