Let a⃗=⟨−2,0⟩\displaystyle \vec{{a}}={\left\langle-{2},{0}\right\rangle} and b⃗=⟨2,−1⟩\displaystyle \vec{{b}}={\left\langle{2},-{1}\right\rangle}. Find −2a⃗+2b⃗\displaystyle -{2}\vec{{a}}+{2}\vec{{b}}.

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