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
820-640=180
(640-140):2=500 500:2=250 (250+140)-250
500+360=860
