13 2 x 7 3 July 8, 2019 16 32 64 128 13 2 x 6 8 7 3 13 2 5 7 x 3 9 13 21 x 2 5 7 3 14 6 2 13 x 3 7 13 Решите уравнение 13 21 x 2 5 7 3 14 13 x =- 2 7 3x 1 13 1 2 x 7 3 4 Log x 7 3x2 13 )= 2 7 x 1 )- 5x =- 13 2 x 3 2x 2 7 3 13 solve for x