Solving compound inequality

Question

4x-9<9x+6<4x+16

Answer 1

4x-9<9x+6<4x+16
subtract 4x
-9 < 5x + 6 < 16
subtract 6
-15 < 5x < 11
divide by 5
-3 < x < 11/5

Answer 2

4x-9<9x+6<4x+16
subtract 4x
-9 < 5x + 6 < 16
subtract 6
-15 < 5x < 10
divide by 5
-3 < x < 2