方程组$\left\{\begin{matrix}x\text{-}2y\text{=}2017\\ 2x\text{+}y\text{=}4039\\\end{matrix}\right.$的解$\left\{\begin{matrix}x\text{=}2019\\ y\text{=}1\\\end{matrix}\right.$，则方程组$\left\{\begin{matrix}\left(a\text{+}2018\right)\text{-}2\left(b\text{-}2019\right)\text{=}2017\\ 2\left(a\text{+}2018\right)\text{+}\left(b\text{-}2019\right)\text{=}4039\\\end{matrix}\right.$的解$(\quad)$