Question

Greater of 2 number is 12 more than smaller and sum of two number is 10

Answer 1

$x + (x + 12) = 10$
$therefore \: x = - 1 \: and \: second \: number \: is \: 11$

Answer 2

if we let number is x & y
then x+y=10
y=x+12 then
we get Y=11 and x=1