Question

Which property is 3x-6y=2(x-2y)?

Answer 1

In fact, there is no such property because you've made a little mistake, I'll write a clear explanation

Explanation:

3x-6y= 3 * (x-2y)

and not 2.

it is like dividing by 3, if you want to check try to do it backwards:

3 *(x-2y) = 3x - 6y