Question

Which expressions are equivalent to 46 ?
Which expressions are equivalent to 4b ?Choose all answers that apply:A) B + 2(b+ 2b)B) 3b+bC) 2(2b)

Answer 1

To determine the equivalnet expression solve each of the given options.

For option A.

$\begin{gathered} b+2(b+2)=b+2(3b) \\ =b+6b \\ =7b \end{gathered}$

For option B.

$3b+b=4b$

Option B results in 4b, so 3b + b is equivalent to 4b.

For option C.

$\begin{gathered} 2(2b)=2\cdot2b \\ =4b \end{gathered}$

Option C results in 4b, so 2(2b) is equivalent to 4b.

Option B and option C are correct.