Решить уравнение (3x-10):2=-1
(3х - 10) : 2 = -1
3х - 10 = -1 • 2
3х - 10 = -2
3х = -2 + 10
3х = 8
х = 8 : 3
3x - 10 = -1 * 2
3x - 10 = -2
3x = -2 + 10
3x = 8
x = 8/3
x = 2 целые 2/3