Question

Help

Answer 1

@johnweldon1993

Answer 2

lets call your two numbers x and y

Answer 3

add them together and you get 10, so x+y=10, but subtract one from the other, and you get -2, so x-y=-2

Answer 4

you can solve via substitution or elimination, but elimination is easier in this case.
(x+y=10)
+(x-y=-2)
2x+y-y=10-2
2x=8
x=4

Answer 5

then plug 4 into one of the equations for x, and solve for y.
x+y=10
4+y=10
y=6

Answer 6

test your answers by plugging both in