-4 < x < 5
-16 < 4x < 20
-11 < 4x+5 < 25
so, ...
Use the addition property and/or the multiplication properties to find a and b.
If -4<x<5 then a<4x+5<b .
3 answers
-4 (4) < 4x < 5(4)
-16 < 4x < 20
-16 + 5 < 4x+5 < 20 + 5
-11 < 4x+5 < 25
-16 < 4x < 20
-16 + 5 < 4x+5 < 20 + 5
-11 < 4x+5 < 25
XD WTF?