Question #c6f62

1 Answer
zoe
Oct 16, 2017

#-2< r <=0#

Explanation:

Split up the inequalities into two parts.
#9+7r>r-3# and #r-3>=7r+3#
Solve them.

#9+7r>r-3#
#6r> -12#
#r> -2#

#r-3>=7r+3#
#0>=6r#
#0>=r#

Since #r# has to be more than #-2# and less than #0#, we can rewrite the inequality as #-2< r <=0#

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