Решите уравнение: (х+2,2)+3 целых 2/3 = 8 целых 1/12

(x + 2.2) +3 2/3 = 8 1/12
x + 2.2 + 3 2/3 = 8 1/12
x + 2.2 = 8 1/12 - 3 2/3
x + 2.2 = 8 1/12 - 3 8/12
x + 2.2 = 4 5/12
x = 4 5/12 - 2.2
x = 4 5/12 - 2 2/10
x = 4 25/60 - 2 12/60
x = 2 целых 13/60

X = 8 ( 1/12 ) - 3 ( 2/3 ) - 2,2 = 8 ( 5/60 ) - 3 ( 20/60 ) - 2 ( 12/60 ) = 8 ( 5/60 ) - 5 ( 32/60 ) = 7 ( 65/60 ) - 5 ( 32/60 ) = 2 ( 33/60 ) = 2 ( 11/20) = 2,55 ; ОТВЕТ X = 2,55