Yes this is equal because 3v+v is 4v and if you divide 12v by 3 you also get 4v
Answer:
a. 18
Step-by-step explanation:
AB+BC = AC
x + x = 36
2x = 36
x = 36/2
x = 18
Answer:

Step-by-step explanation:
Given matrix is,

Operations performed,
-10R₂ → R₂

3R₃ → R₃

The answer is the last option: The associative property of multiplication