Distributive property combined like term ... 3 (x+2) + 14-7x

First you would distribute the 3. So it would be (3x+6) + 14+7x. Since you can’t do anything inside the parentheses, you drop them. Then you’d combine like terms. 3x+7x is 10x, and 14+6 is 20. That would get you your answer, 10x+20