a) 407x = 325x = 3256 / 40x ≈ 8
в) 7591 - y = 30y = 7591 - 30y = 7285
г) x - 1904 = 74x = 748 + 190x = 2652
a) 407x = 325
x = 3256 / 40
x ≈ 8
в) 7591 - y = 30
y = 7591 - 30
y = 7285
г) x - 1904 = 74
x = 748 + 190
x = 2652