Solve the equation ∣2x−1∣=20\displaystyle {\left|{2}{x}-{1}\right|}={20}.

The smallest solution is x1=\displaystyle {x}_{{1}}=  
and the other solution is x2=\displaystyle {x}_{{2}}=  
Be sure that x1≤x2\displaystyle {x}_{{1}}\leq{x}_{{2}}.

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