The factors of -18 are 1, 2, 3, 6, 9, 18 and their negative counterparts :)
Simply because 4.135 is a larger number than 4.23.
X=5+y
x+y=-15
subsitute 5+y for x
5+y+y=-15
5+2y=-15
minus 5 from both sides
2y=-20
divide both sides by 2
y=-10
sub back
x=5+y
x=5-10
x=-5
the numbers are -10 and -5
Well you can fill out the equation (-7-1, 7+6)
it'll give you
(-8,13)
I believe that is what you are asking for :)
Good Luck
