15/2x-3*(5 целых 11/18x)=19

Question

15/2x-3*(5 целых 11/18x)=19

Answer 1

Ответ: x = 17 стодвадцатых

Comments

А подробнее

Answer 2

15/2 х - 3*5 11/18 х = 19
15/2 х - 3*101/18 х = 19
15/2 х - 303/18 х = 19
(135 - 303)/18 х = 19
-168/18 х = 19
х = 19 : (-168/18)
х = -(19*18)/168
х = -342/168
х = -171/84
х = -2 3/84
х = - 2 1/28