Question

решите уравнение x - x/12 = 55/12

Answer 1

x - x/12 = 55/12 |*12
12 x - x = 55

11x = 55

x=55 : 11

x=5

Answer 2

х-х/12=55/12
12х/12-х/12=55/12
11х/12=55/12
11х=55
х=55/11
х=5