Question

(x+2  3/13) - 1   7/26 = 4  5/39

Answer 1

(x+2  3/13) - 1   7/26 = 4  5/39
(x+ 29/13) -  33/26 = 161/39
x+ 2*29/2*13 -  33/26 = 161/39
x+ 58/26 -  33/26 = 161/39
x+ 25/26 = 161/39
x = -  25/26 + 161/39
x = -  25*3/26*3 + 161*2/39*2
x = -  75/78 + 322/78
x = 247/78 = 19/6     или  3 1/6