Preview question: $$ -2 \left( -3 x - 17 \right) + 9 \left( 11 x + 20 \right) = -2 \left( -7 x - 16 \right) $$

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: $$ -2 \left( -3 x - 17 \right) + 9 \left( 11 x + 20 \right) = -2 \left( -7 x - 16 \right) $$

Right answer summary: -2

Question state: todo