Respuesta :

Answer:

2 car + 2 bear = 760

Step-by-step explanation:

if car +bear + train =820,

then 2cars + 2bears + 2trains =1640

- 2cars + 0 + 2trains = 1380

2bear = 260

2train - 2car = 280

-(2train+2car)=1280

-4car=-1000

2car = 500

2 car + 2 bear = 760
1280:2=640
820-640=180
(640-140):2=500 500:2=250 (250+140)-250
500+360=860