Step 1

First, substitute x with x. Remember to put brackets around 2.

Step 2

Now, multiply 5 with 2. You will get 10.

The expression is now 10 -7y.

Step 3

Next, substitute y with -3. Remember to put brackets around -3.

Step 4

Now, multiply -7 with -3. You will get +21

The expression is now 10 +21.

Step 5

Finally, add 10 with 21. This gives 31. Therefore, the answer is A.