Complete the Next Step: A partial solution to the equation 8b + 12 = 5(4 + 2b) is given below. Choose the step that is missing from the solution.

8b + 12 = 5(4 + 2b)
8b = 8 + 10b
−2b = 8
b = −4

8b + 12 = 20 + 2b

8b + 12 = 20 + 10b

8b + 12 = 9 + 7b

8b + 12 = 4 + 10b

Question

Complete the Next Step: A partial solution to the equation 8b + 12 = 5(4 + 2b) is given below. Choose the step that is missing from the solution.

8b + 12 = 5(4 + 2b)
8b = 8 + 10b
−2b = 8
b = −4

 8b + 12 = 20 + 2b

 8b + 12 = 20 + 10b

 8b + 12 = 9 + 7b

 8b + 12 = 4 + 10b

anonymous · Answer

8b + 12 = 5(4+2b)
For the next step, you are to use the distributive property  for 5(4+2b).

The distributive property is a(b+c) = ab+ac.
Can you solve that for 5(4+2b)?