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Verified answer
4|5x + 2| - 2|5x + 2| = 122|5x + 2| = 12
|5x + 2| = 6
5x + 2 = 6
5x = 6 - 2
5x = 4
x = 4/5
5x + 2 = -6
5x = -6 - 2
5x = -8
x = -8/5
x = { -8/5, 4/5 }
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