SOLUTION: |2x + x| =9
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Question 777105: |2x + x| =9
Answer by oscargut(2103) (Show Source): You can put this solution on YOUR website!
|2x + x| =9
|3x| =9
3|x| =9
|x| =3
x = 3 or x = -3
Answer: 3, -3
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