Answer:
negative
Step-by-step explanation:
A) - 8 - 13 +4
B)+4 +7 - 2
C)-7 +3 - 20
9(x - 11) = 9
x - 11 = 9 / 9
x - 11 = 1
x = 1 + 11
x = 12
Hope it will help :)