The answer you are looking for is associative property of addition.
In associative property, no matter where the parenthesis are, a + (b + c) is going to be equal to (a + b) + c. Since the parenthesis follow the equation a + (b + c) = (a + b) + c, you can assume you are using the associative property. Lastly, add "of addition" to associative property, since you are using addition, not multiplication.
I hope this helps!
Answer:
-4
Step-by-step explanation:
-2x = 18
(because y = 0)
-18 = 2x
x = -18/2
Therefore, the value of x is -9
Answer:
15g-h is the answer......