Answer:
d 13
Step-by-step explanation:
Subtracting means adding the opposite.
To subtract -4, you add the opposite of -4 which is 4, so you add 4.
9 - (-4) = 9 + 4 = 13
Answer: d 13
9-(-4)
Pretend that there is a -1 in front of the bracket
9-1(-4)
Mutiply the bracket by -1
(-1)(-4) = 4
9+4= 13
Answer : d 13
-4 + x = 0
Add 4 to both sides:
x = 4
The answer is d) 4
y>4x-4
