а) x - (-2x + 4) = 2 - 2(3x - 2)
x - (-2x + 4) = 2 - 6x + 4
x + 2x +4 = 6 - 6x
x + 2x + 6x = 6 - 4
9x = 2
x = 4.5
б) 13 - 19x = 2x - 4
2x + 19x = 13 + 4
21x = 17
x = 21 : 17
x = 1.2
в) 23x - 1 = 34x - 2
23x - 34x = 1 - 2
-11x = -1
x = -11 : (-1)
x= 11
Пошаговое объяснение:
а) x - (-2x + 4) = 2 - 2(3x - 2)
x - (-2x + 4) = 2 - 6x + 4
x + 2x +4 = 6 - 6x
x + 2x + 6x = 6 - 4
9x = 2
x = 4.5
б) 13 - 19x = 2x - 4
2x + 19x = 13 + 4
21x = 17
x = 21 : 17
x = 1.2
в) 23x - 1 = 34x - 2
23x - 34x = 1 - 2
-11x = -1
x = -11 : (-1)
x= 11
Пошаговое объяснение: