23. Which of the following statement is false?
a. -7 + -(6 ) =-13
b. -5+1 = 4
c. 2+(-1) = 1
d. 8 +(- 9) =-1
26. What integers or number should be added to -5 to get 4?
a. 1
b. -1
c.-9
d. 9
27. What will be the additive inverse of 7?
a. -5
b.-7
c. -6
d. -4
28. What is the predecessor of-9?
a. -8
b. 8
C. -10
d. 10
29. What is the successor of -1?
3.-2
b. O
C. 1
d. 2​