Preview question: $$ \frac{15 x - 9} {2} + \frac{25 x + 9} {-4} = 8 + 16 x $$

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: $$ \frac{15 x - 9} {2} + \frac{25 x + 9} {-4} = 8 + 16 x $$

Right answer summary: -1

Question state: todo