Answer :

lin's number = l
pazi's number = p

l = p + 7
p = p

p + 7 + p = 49

2p + 7 =  49

2p + 7 (-7) = 49 (-7)

2p = 42

2p/2 = 42/2

p = 21

l = p + 7

l = 21 + 7

l = 28

pazi is 21 years old, Lin is 28 years old

hope this helps

Other Questions