Пошаговое объяснение:
4х+ 12=24;.
4x = 24 - 12
4x = 12
x = 12 : 4
x = 3
7у-4=32;.
7y = 32 + 4
7y = 36
y = 36 : 7
y = 5 1/7
2х-5=8х;
8x - 2x = -5
6x = -5
x = -5 : 6
x = -5/6
