Answer:
The symmetric of -15 is 15.
Step by step explanation:
When we talk about symmetric, we must remember that it means the opposite of a number, that is, we take as a basis the number line where we have zero (0) as the central number, on one side the negative infinite numbers (-) and on the other, the positive infinite number (+), see the attached image.
In order to solve this type of exercise, just change the signs of the number in question, if it is negative it will become positive and vice versa.
