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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 < x < 5
-16 < 4x < 20
-11 < 4x+5 < 25
so, ...

-4 (4) < 4x < 5(4)

-16 < 4x < 20

-16 + 5 < 4x+5 < 20 + 5

-11 < 4x+5 < 25

XD WTF?

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