# How do you solve and write the following in interval notation: #-3 ≤ (x + 4) / 3 <-1#?

##### 1 Answer

Jun 27, 2018

#### Answer:

#### Explanation:

#"isolate "x+4" in the middle interval by multiplying all"#

#"intervals by 3"#

#-9<=x+4<-3#

#"subtract 4 from each interval"#

#-13<=x<-7" is the solution"#

#[-13,-7)larrcolor(blue)"in interval notation"#