Answer: 7
Step-by-step explanation:
denotes the intersection of A and C, or in other words, how many elements are shared between them.
The number of elements is 2 + 5 = 7
Answer: no solution
Step-by-step explanation:
20x - 36 = 20x - 45
-20x. -20x
-36 = -45 since this is not true, the answer is there is no solution
Answer:
Im losted
Step-by-step explanation:
I really gave him a piece of my mind
