Question

PLEASE SOLVE THIS !!!!!!!

Answer 1

10x-y=3
x+10y=143 then solve

Answer 2

let the unit digit be x

ten digits =x+3

10(x+3)+x

digits inter changed=10x+x+3

10(x+3)+x+10x+x+3=143

=22x+33=143

22x=110

x=110/22

x=5

original number =85