Question

C. Are 2b + b and 3b equivalent expressions​

Answer 1

The answer is No they are not equvalient expression

Explanation:

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Answer 2

Answer: Yes

Explanation:

Imagine you have b = 2.

Plug 2 into the equation 2b + b = 3b

You get: 2(2) + 2 = 3(2)

Which solves to be 6 = 6

As long as the variable is the same, in this case b, and they are to the same power, in this case ^1, you can combine them.