the sum is 15 and their difference is7

Question

pls make this easy im in the 4th grade

Answer 1

let x and y be the two numbers:

x + y = 15

x - y = 7

2x = 22

x = 11

11 + y + 15

y = 4

Answer 2

11 and 4 --> 11+4-15 and 11-4=7

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Here is the algebra if you want it:

1st number is X

2nd number is Y

sum is 15: x+y = 15

difference is 7: x-y = 7

adds the equations together: 2x = 22

x = 11