Question

The sum of two numbers is 51. Their difference is 13. What is the smaller of the two numbers?
(Points : 1)

18


19


20


21

Answer 1

19

Answer 2

let #1=x; #2=y

x+y=51
x-y=13

solve for x and y

Answer 3

38?

Answer 4

x=y+13
y+y+13=51
2y=38
y=19

x=19+13
x=32

smaller = 19