1 1/9x+2 1/4x-3/4 при х=0.1

y = (11/9+2 1/4)x-3/4

11/9 = 1 2/9

(y +3/4)/x = 3 2/9 +1/4

x = 0.1

(y - 3/4)/0.1 = 3 8/36+ 9/36

(y - 3/4)*10=3 17/36

y10 - 30/4 = 3 17/36

y = (3 17/36 + 30/4)/10

дальше сам