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Which answer is the solution set? -5<_3m + 1 < 4

User MDT
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-5 ≤ 3m + 1 < 4
-5 - 1 ≤ 3m < 4 - 1
-6 ≤ 3m < 3
-6/3 ≤ m < 3/3
-2 ≤ m < 1
User Aleks G
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