Answer:
x < 4.
Explanation:
3x - 3 < 9
Add 3 to both sides:
3x < 9 + 3
3x < 12
Divide both sides by 3:
x < 4
3x - 3 < 9 ( add 3 to both sides )
3x < 12 ( divide both sides by 3 )
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