Найди пересечение и объединение множеств решений двух неравенств 3 меньше X и меньше или равно 7 и 5 меньше или равно х меньше или равно 9

3<x≤7                      ∩                       5≤x≤9

    ////////////////////                             //////////////////////

\\\\\\\\\\\\\                            \\\\\\\\\\\\\\\\\\\\

---o-------*-->x                         -----*------*----->x

    3        7                                    5       9

x∈(3; 7]                  ∩                x∈[5; 9]   

                 /////////////////

                         \\\\\\\\\\\\\\\\\

            ----o-----*------*------*------>x

                 3      5       7      9        

(3; 7] ∩ [5; 9] = [5; 7]

3<x≤7                    U                 5≤x≤9

    ////////////////////                             //////////////////////

\\\\\\\\\\\\\                            \\\\\\\\\\\\\\\\\\\\

---o-------*-->x                         -----*------*----->x

    3        7                                    5       9

x∈(3; 7]                  ∪                x∈[5; 9]   

                 /////////////////

                         \\\\\\\\\\\\\\\\\

            ----o-----*------*------*------>x

                 3      5       7      9        

(3; 7] ∪ [5; 9] = (3; 9]