Question

Is it possible to solve 5(b-2)=20 by first dividing each side by 5? Explain

Answer 1

Yes

Explanation:

It is indeed. This simplifies the equation. What you have to remember about solving equations is whatever you do to one side you have to do the same to the other side. This maintains the 'balance'.

Dividing by 5 gives b - 2 = 4

so b =6.

Answer 2

Yes

5(b-2) = 20

b-2 = 4

b = 6