Question

|x+1|=3 ajutor explucati mi si mie cum se calculeaza

Answer 1

${|x+1|=3} \iff x+1=3 \ sau \ x+1=-3 \\ \\ x+1=3 \\ x=3-1 \\ \boxed{x=2} \\ \\ x+1=-3 \\ x=-3-1 \\ \boxed{x=-4} \\ \\ x\in \{-4,2\}$