Behaviour being used: Adaptive mode
Minimum fraction: 0
Question summary: Welche Äquivalenzumformungen sind richtig: {[left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow negative x plus 1 equals negative 2 x minus 2 left right double arrow negative x plus 2 x equals negative 2 minus 1 left right double arrow x equals negative 3]; [left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow x minus 1 equals negative 2 x minus 2 left right double arrow x plus 2 x equals negative 2 plus 1 left right double arrow 3 x equals negative 1]; [left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow negative x plus 1 equals negative 2 x minus 2 left right double arrow negative x plus 2 x equals negative 2 minus 1 left right double arrow negative x equals negative 3]} -> {falsch; richtig}
Right answer summary: [left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow negative x plus 1 equals negative 2 x minus 2 left right double arrow negative x plus 2 x equals negative 2 minus 1 left right double arrow x equals negative 3] -> richtig; [left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow x minus 1 equals negative 2 x minus 2 left right double arrow x plus 2 x equals negative 2 plus 1 left right double arrow 3 x equals negative 1] -> falsch; [left parenthesis negative x plus 1 right parenthesis equals negative 2 left parenthesis x plus 1 right parenthesis left right double arrow negative x plus 1 equals negative 2 x minus 2 left right double arrow negative x plus 2 x equals negative 2 minus 1 left right double arrow negative x equals negative 3] -> falsch
Question state: todo