Answer:
They are b and c.
Step-by-step explanation:
Let's simplify each expression:
a. b+2 (b+2b)
= b + 2b + 4b = 7b.
b. 3b + b = 4b.
c. 2(2b) = 2 * 2b = 4b.
Answer:
hello :
expressions are equivalent to 4b :
b ) 3b +b = 4b
c) 2(2b) = 4b
but : a) is not equivalent to 4b
because : b+2 (b+2b) = b + 2b +4b = 7b
