Algebra

[Guest]

Lisa had a collection of stamps from Australia,France and Japan.She had 124 stamps from Australia.30% of her stamps were from France.She has 12 fewer stamps from Japan than France.What was the total number of stamps in Lisa's collection?


Please explain in a simpler way

[Guest]

Just add them up.

Australia + France + Japan = Total(T)

124 + .3T + (.3T-12) = T

0.4T = 112

T = 280 .....the total number of stamps

124 Australia
84 France
72 Japan