12 + (4x – 12) – 2x = (5 – 3x) + 10;
12 + 4x – 12 – 2x = 5 – 3x + 10;
12 - 12 + 4x - 2x = 15 - 3x;
2x +3x = 15;
5x = 15;
x = 15 : 5;
x = 3.
х = 3
Пошаговое объяснение:
12 + (4x – 12) – 2x = (5 – 3x) + 10
12 + 4х - 12 - 2х = 5 - 3х + 10
2х = 15 - 3х
2х + 3х = 15
5х = 15
х = 15/5
х = 3
