////////////////////////////////////////////////////////////////
//
//     http://www.planetquantum.com/Solve/Level1/Den13/Page36.txt
//
////////////////////////////////////////////////////////////////

Generator:
(C (^ 3 1/3) (Cos 1) 6 7 2)

Problem:
(= (cdot #[[14 42 24 95 70 30 74]
           [8 38 23 21 63 83 10]
           [78 1 9 58 83 91 86]
           [92 53 49 93 50 57 75]
           [46 41 61 94 54 16 87]
           [59 68 29 99 73 39 85]]
         #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]])
   #[[54] [3] [2] [30] [58] [68]])

Solution:
(= #[[x_1] [x_2] [x_3] [x_4] [x_5] [x_6] [x_7]]
   #[[-5608629569]
     [4742781755]
     [-1298462787]
     [-3690252198]
     [-10983765312]
     [6647605220]
     [11222925152]])