the sum is 18 and the diffrence is 2 what are the two numbers

Answer 1

10 + 8 = 18

10 -8 = 2

the two numbers are 10 and 8

x +y = 18

x - y = 2

add the two equations to eliminate one variable, then solve for the other

2x = 20

x = 20/2 = 10

y = 18-10 = 8