we have
-2(w+5)+7< -13
solve the inequality for the variable w
-2(w+5)<-13-7
-2(w+5)<-20
Divide both mebers by -2
REmember that
when you multiply or divide both sides of an inequality by a negative number, you must reverse the inequality symbol
so
w+5>10
subtract 5 both sides
w>10-5
w>5
the solution is the interval
(5, infinite)
