How do you solve and write the following in interval notation: # 3x< -21#?
1 Answer
Feb 14, 2017
Explanation:
To solve for x, divide both sides of the inequality by 3
#(cancel(3) x)/cancel(3)<(-21)/3#
#rArrx<-7" is the solution"#
#"Expressed in interval notation " (-oo,-7)#
