Question

The sum of two numbers is 51 and the difference is 13. what are the numbers

Answer 1

the two numbers are 19 and 32

Explanation:

let's call the numbers x and y.

write out the equations

x + y = 51

x - y = 13

simplify the second equation

x = 13 + y

substitute into the first equation and simplify

(13 + y) + y = 51

13 + 2y = 51

2y = 51 - 13

2y = 38

y = 19

substitute y for 19 in the second equation

x = 13 + y

x = 13 + 19

x = 32

Answer 2

Explanation:

19 and 32