2x + 5 - 5 > 9 - 5 or x + 1 - 1 < 0 - 1
2x > 4 or x < -1
Finally, divide both sides by (+2) on the left:
x > 2 or x < -1
| x < -1 or x > 2 |
Notice that it is impossible for both x < -1 AND x > 2 to be true about the same number x.
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| x < -1 or x > 2 |
Notice that it is impossible for both x < -1 AND x > 2 to be true about the same number x.
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, -1) 
( 2, 