Answer:
10 and 3
Step-by-step explanation:
let the first number be x and the second be y
x=y+7------i
their sum is 13
x+y=13-----ii
substituting for x in ii
y+7+y=13
collecting like terms
2y=13-7
2y=6
y=3
recall ii and substitute for y
x+y=13
x+3=13
collecting like terms
x=10
