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5 votes
Solve for x

-3 < 3x -9 < 9

1 Answer

2 votes

Answer:

2 < x < 6

Explanation:

- 3 < 3x - 9 < 9 ( add 9 to each interval )

6 < 3x < 18 ( divide each interval by 3 )

2 < x < 6

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