What is to be subtracted from $17.1$to get $2.051$?

Hint: In order to solve this question first assume a variable $x$. Assume that $x$ is to be subtracted from $17.1$to get $2.051$. Then solving the equation by simplifying the mathematical operations gives the value of $x$, which is the required answer.

Complete step-by-step answer:
We have to find the number which is to be subtracted from $17.1$to get $2.051$.
Let the number be $x$.
Now, according to the information given in the question x is subtracted from $17.1$ and we get the number $2.051$.
Therefore,
$17.1-x=2.051$
Now, simplifying the above obtained equation we will get
$\Rightarrow 17.1-2.051=x$
$\Rightarrow x=15.049$
So, the correct answer is “15.049”.

Note: The equation obtained is the linear equation in one variable and by solving the equation we have to find the value of the unknown variable. In subtraction order of number must be taken correctly. If we write the equation as $x-17.1=2.051$, it gives the incorrect solution.