Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Calcula 7·x - 20·x + 3·x - 13·x: 11·x; -23·x
Right answer summary: -23·x
Question state: todo
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Calcula 7·x - 20·x + 3·x - 13·x: 11·x; -23·x
Right answer summary: -23·x
Question state: todo