Question

x + 2 < −1

Answer 1

x<-1-2 --> x <-3

Answer 2

x + 2 < −1
transfer 2 to the other side
x<-2-1
x<-3

check:
x + 2 < −1
used first the equal sign
x+2=-1
x=-2-1
x=-3
therefore
X<-3