Which of the following statements is false: -5 + 1 = 4, 4 - 5 = -1, 2 + (-1) = 1, -7 + (-6) = - 13

-5 + 1 = 4

4 - 5 = -1

2 + (-1) = 1

-7 + (-6) = - 13

Let's evaluate each statement:

1. -5 + 1 = -4 (not 4), so this statement is false.

2. 4 - 5 = -1 (true)

3. 2 + (-1) = 1 (true)

4. -7 + (-6) = -13 (true)