How do you solve and write the following in interval notation: #-4<a + 2<10#?

2 Answers
Jul 14, 2016

Answer:

#a in ]-6,8[#

Explanation:

you can subtract 2 to all terms:

#-6< a<8#

Jul 14, 2016

Answer:

#-6 < a < 8#; #(-6,8)#

Explanation:

Subtract two.

#-4 < a + 2 < 10#

#-4 -2 < a + 2 -2<10-2#

#-6 < a < 8#

Interval Notation:

#(-6,8)#

Parenthesis do not include values, and brackets include the values they cover in interval notation.