Champ ate 1 more than twice the number of dog treats that Queenie ate. Together they consumed 13. How many dog treats did Queenie eat?

Respuesta :

x- ate Queenie
2x+1 - ate Champ 

x+2x+1=13
3x+1=13
3x=13-1
3x=12
x=12:3
x=4 ate Queenie