Answer :

Step-by-step explanation:

Consider the age of billy as x

and sally be y

so first equation is

y = x+5

x+y = 53

these are the two equations and then just solve them simultaneously

to get the ages

x-y = -5

x+y = 53

2x = 48

x = 24

Hence billy's age is 24 years

and Sally is five years elder so 29 years is sallys age

Answer:

it is very easy. just do 53:2 because there are to persons(26,5). and now you need to take the half of 5 which is 2,5. this you need to do because there are two persons again. now for the older person you do 26,5+2,5=29. and for the junger person 26,5-2,5=24. sally is 29 years old. Billy is 24 years old