Answer:
Fill in the blank 1: -23
Fill in the blank 2: -33
Fill in the blank 3: 23
Fill in the blank 4: 10
Explanation:
The first fill in the blank is solved by adding -23 or subtracting 23 from -13 to equal the other side of the equation. The second fill in the blank is solved by adding -23 and -13, which would get you -33 (assuming that you're supposed to solve the right side of the equation). The 3rd fill in the blank is solved by adding the opposite of -23 to the right side of the equation (23). The 4th fill in the blank is solved by adding -13 and 23 together which make 10.