5x-10/21- 3х-1/14=1 плиз помогите
5X - 3X = 1 + 10/21 + 1/14 2X = 31/21 + 1/14 2X = 62/42 + 3/42 2X = 65/42 X = 65/42 : 2 X = 65/84