Explanation:
-1<2x+3<5
-1-3<2x<5-3 ..............you transpose 3
-4<2x<2...............divide by 2 both sides
-2<×<1
-1 < 2x + 3 =< 5 /-3
-4 < 2x =< 2 /÷2
-2 < x =< 1
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