X is 7 obiviously because when you subtract 5 from both sides you are gonna have 7 for x
Answer:
2x -1
Step-by-step explanation:
the whole number preceding a whole number 2x = 2x-1
Answer:

Step-by-step explanation:
This is my best guess
Answer:
The first one, "A survey..."
Hope this helps!
Step-by-step explanation:
Answer: (C) It can be shown that W = x y z ∈ R 3 : x + 2y − 4z = 0 and y − 3z = 0 is a subspace of the vector space R 3 , and the dimension of W is 2.
Step-by-step explanation: