Resolvi com um sistema...L=LebreG=GatoC=CachorroL+G=10C+L=20G+C=24assim:C=24-G(24-G)+L=20 ~~ L=20-(24-G)20-(24-G)+G=10 ~~ G=7kgC=24-7 ~~ C=17kgL=10-7 ~~ L=3kglogo:G+C+L=7+17+3= 27kg:)
Resolvi com um sistema...
ResponderExcluirL=Lebre
G=Gato
C=Cachorro
L+G=10
C+L=20
G+C=24
assim:
C=24-G
(24-G)+L=20 ~~ L=20-(24-G)
20-(24-G)+G=10 ~~ G=7kg
C=24-7 ~~ C=17kg
L=10-7 ~~ L=3kg
logo:
G+C+L=7+17+3= 27kg
:)