My brother is 5 years older than me. my sister is 3 years younger than me. how old was my brother when my sister was m years old?

hmmmm

b = brother

s = sister

a = my age

so your brother is 5 years older, b = a + 5.

and your sister is 3 years younger, s = a - 3.

that means your sister is

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9