4 x ( 6 ) - 3 = 21
          
2 x (    ) - 1 = 3
          
(    ) x 3 + 2 = 17
          
(    ) x 7 + 1 = 15
          
(    ) x 2 - 4 = 6
          
(    ) x 3 + 2 = 11
          
4 x (    ) + 1 = 29
          
(    ) x 8 - 2 = 22
          
(    ) x 4 - 5 = 19
          
(    ) x 2 - 5 = 13
          
(    ) x 3 + 4 = 19
          
7 x (    ) - 6 = 57
          
(    ) x 5 + 5 = 40
          
(    ) x 3 - 1 = 5
          
          +[    ]

4 x (    ) - 4 = 16
          
(    ) x 8 + 1 = 17
          
(    ) x 4 + 3 = 23
          
4 x (    ) - 1 = 11
          
6 x (    ) - 4 = 32
          
(    ) x 9 + 1 = 28
          
(    ) x 5 + 3 = 28
          
(    ) x 4 + 2 = 38
          
(    ) x 7 - 4 = 52
          
(    ) x 8 - 1 = 71
          
6 x (    ) - 2 = 40
          
5 x (    ) + 1 = 11
          
(    ) x 6 - 2 = 28
          
9 x (    ) - 1 = 17
          
          +[    ]

7 x (    ) + 3 = 59
          
6 x (    ) + 2 = 20
          
7 x (    ) - 2 = 47
          
(    ) x 2 + 2 = 8
          
(    ) x 6 - 1 = 29
          
7 x (    ) + 3 = 31
          
(    ) x 8 - 2 = 54
          
(    ) x 9 + 6 = 87
          
7 x (    ) + 6 = 55
          
6 x (    ) - 1 = 11
          
(    ) x 7 + 1 = 36
          
3 x (    ) + 1 = 7
          
(    ) x 9 + 1 = 64
          
7 x (    ) - 2 = 19
          
          +[    ]

  ++[[       ]]