6 (2 + x) = 12 + 6x illustrates what property of multiplication?

This equatuon illustrates distributive of multiplicatiton over addition.

If we have a set E with two relation * and + : (E,+,*) we say that the relation * is distributive with respect to the relation

If a * (b+c) = a*b + a*c for every a, b, c from E