10.(2021•石家庄模拟)已知集合A={0A=\{0A={0,a+ba+ba+b,ab}\frac{a}{b}\}ba},B={0B=\{0B={0,1−b1-b1−b,1}1\}1},(a,b∈R)(a,b\in R)(a,b∈R),若A=BA=BA=B,则a+2b=(a+2b=(a+2b=( )))