Первое уравнение:4x + 5(3 - 2x) = 5 - 11x4x + 15 - 10x = 5 - 11x-6x + 15 = 5 - 11x-6x + 11x = 5 - 155x = -10x = -2
Второе уравнение:19 - 2(3x + 8) = 2x - 3719 - 6x - 16 = 2x - 373 - 6x = 2x - 37-6x - 2x = -37 - 3-8x = -40x = 5
Ответ: x = -2, x = 5.
Первое уравнение:
4x + 5(3 - 2x) = 5 - 11x
4x + 15 - 10x = 5 - 11x
-6x + 15 = 5 - 11x
-6x + 11x = 5 - 15
5x = -10
x = -2
Второе уравнение:
19 - 2(3x + 8) = 2x - 37
19 - 6x - 16 = 2x - 37
3 - 6x = 2x - 37
-6x - 2x = -37 - 3
-8x = -40
x = 5
Ответ: x = -2, x = 5.