Question

(4-x)+2/13=1/13 .Срочно!!!Даю 30 балов

Answer 1

(4-x)+2/13=1/13;4-x+2/13=1/13;54/13-x=1/13;-x=1/13-54/13;-x=-53/13;x=53/13;P.S.:4+2/13=(52+2)/13=54/13;1/13-54/13=-53/13.