Okay, so I found this video that explains what the distributive property is.
maybe you should watch it: https://www.khanacademy.org/math/pre-algebra/order-of-operations/ditributive_property/v/the-distributive-property
I am watching it right now, and I will try then to solve the problem you need help with. Then send me a private message and tell me what u got for an answer, I will tell u if that is also what I got, sound good?
hope this helps!!