Answer

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**Hint:**We know that, $x$ taken away from $y$ means $x$ value subtracted from $y$ value, where $x{\text{ and }}y$ are integers.

**Complete step-by-step answer:**

First of all we have to understand the statement by splitting the words.

Then we will get,

7 Taken away from $y$.

Now we have to convert this split statement into numbers, literals and signs of basic operations.

We can take 7 as it is, because that is a number itself.

Take away from can be derived as subtracted from, for which we can use the sign of basic operation.

We can consider $y$ as an unknown value, more often an integer and we can take $y$ as it is.

Now we have to bring the split version of the derived statement together.

Then we will get the below statement,

\[7{\text{ }}subtracted{\text{ }}from{\text{ }}y.\]

The above statement can be further derived to get the desired format.

\[y - 7\]

Hence we get the answer.

**Note:**In the above problem, we derived \[7{\text{ subtracted from }}y\] as \[y - 7\].

Why we didn’t write that as $7 - y?$

It’s because whenever we write $x{\text{ subtracted from }}y$ , then $x$ value should be subtracted from $y$ and not $y$ value from $x$ value.

So, we should write the $y$ value first followed by the sign and the $x$ value.

Hence we arrived at the above solution.

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