8 19 12 (х-1 23)+3 23=5 23
(x-123)+323=523 (x-123)=523-323 (x-123)=200 x=200+123 x=323 или (x-1,23)+3,23=5,23 (x-1,23)=5,23-3,23 (x-1,23)=2 x=1,23+2 x=3,23