Preview question: $$ 2 \left( 18 + 10 x \right) = -2 \left( -5 x - 8 \right) $$

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: $$ 2 \left( 18 + 10 x \right) = -2 \left( -5 x - 8 \right) $$

Right answer summary: -2

Question state: todo