Technical information
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: $$ 2 \left( -2 x + 21 \right) + 2 \left( 3 x - 19 \right) = -9 \left( -16 + 2 x \right) $$
Right answer summary: 7
Question state: todo
Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: $$ 2 \left( -2 x + 21 \right) + 2 \left( 3 x - 19 \right) = -9 \left( -16 + 2 x \right) $$
Right answer summary: 7
Question state: todo