1181. Решите уравнения: 1) 5x - 2 - 6 = 4 + 3x - 2); 2) 3x + 1 + 4 = 5x + 1 - 6; 3) 7 + 4x - 1) = 9x - 1 - 8; 4) 5x + 4- 6 = 3x + 4 + 8. 1180. 9 остановок. 1181. 1) -3; 7; 2) -6; 4; 3) -2; 4, 4) -11;
More Questions From This User See All
Answers & Comments
Пошаговое объяснение:
5х - 2 - 6 = 4 + 3х - 2
5х - 8 = 3х + 2
5х - 3х = 2 + 8
2х = 10
х = 10 : 2
х = 5
3х + 1 + 4 = 5х + 1 - 6
3х + 5 = 5х - 5
3х - 5х = -5 - 5
-2х = -10
х = -10 : (-2)
х = 5
7 + 4х - 1 = 9х - 1 - 8
4х + 6 = 9х - 9
4х - 9х = -9 - 6
-5х = -15
х = -15 : (-5)
х = 3
5х + 4 - 6 = 3х + 4 + 8
5х - 2 = 3х + 12
5х - 3х = 12 + 2
2х = 14
х = 14 : 2
х = 7