Answer:
-2.5
Step-by-step explanation:
2x-4=-9
2x=-5
x=-2.5
A = 1
b = -1
a + b =
1 + (-1) =
1 - 1 =
0....so a + b = 0
additive inverse property states that every real number added to its additive inverse (or opposite) will equal zero.
Answer:
I think its A
Step-by-step explanation: