How do you solve and write the following in interval notation: #-5(2x+3) >3#?
1 Answer
Jul 20, 2016
#x < -9/5#
#(-oo,-9/5)#
Explanation:
Distribute the
#-5(2x) + -5(3) > 3#
#-10x - 15 > 3#
Add
#-10x cancel(-15+15) > 3+15#
#-10x > 18#
Divide by
#(cancel(-10)x)/(cancel(-10)) < 18/-10#
#x < -18/10#
Simplify
#x < -9/5#
Now write in interval notation:
#(-oo,-9/5)#