Answer:
The calculated number is -136.
Step-by-step explanation:
Given: Two more than a certain number is 15 less than the product of
and the number.
To find: What is that number?
Solution:
Denote the number as 'x'.
According to the statement,
Two more than this unknown number equals 15 less than the product of
and the number.
i.e. 
Solving the equation leads to,
Bringing like terms together,



Thus, the required number is -136.