Question

(11-13x)/x+(11-13y)/y+(11-13z)/z=5 then what is that value of 1/x+1/y+1/z=?

Answer 1

ANSWER=4

EXPLANATION-

(11-13x)/x+(11-13y)/y+(11-13z)/z=5

= 11/x-13+11/y-13+11/z-13=5

=11/x+11/y+11/z-39=5

=11(1/x+1/y+1/z)=5+39=44

=1/x+1/y+1/z=44/11=4

=1/x+1/y+1/z=4

ANS.=4