Preview question: $$ \frac{-4 - 2 x } {-4} = \frac{-2 x

Technical information

Behaviour being used: Adaptive mode

Minimum fraction: 0

Question summary: $$ \frac{-4 - 2 x } {-4} = \frac{-2 x - 9} {-3} $$

Right answer summary: -12

Question state: todo

Preview question: $$ \frac{-4 - 2 x } {-4} = \frac{-2 x - 9} {-3} $$