12 13/45-(y-5 17/45)=3 23\45

Question

12 13/45-(y-5 17/45)=3 23\45

Answer 1

-у+5 17/45=3 23/45-12 13/45
-у=3 23/45-12 13/45-5 17/45
у=-3 23/45+12 13/45+5 17/45
у=14 7/45

Comments

в смысле?