Question

Is 3(2a - b) and 6a - 3b equivalent?

Answer 1

Use the distributive property.
3*2a - 3*b = 6a - 3b.

Answer 2

Yes, they are equivalent. This is because if you factor 3(2a - b), it becomes 3(2a) + 3(-b). This is because you are using the distributive property. That is equal to 6a - 3b and is proven equivalent.