Preview question: $$ 2 \left( 15 - 2 x \right) = 9 \left( -2 x + 22 \right) $$

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: $$ 2 \left( 15 - 2 x \right) = 9 \left( -2 x + 22 \right) $$

Right answer summary: 12

Question state: todo