LET X AND Y BE POSITIVE INTEGERS SUCH THAT X Y Y X 7X 7Y 7XY...
9. Let x and y be positive integers such that
x y
y x
7
x
7
y
7
xy
7
.
Determine x+y.
Answer :
9. Let x and y be positive integers such that
x y
y x
7
x
7
y
7
xy
7
.
Determine x+y.
Answer :