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CHECK MY WORK, PLEASE! Solve: 16 < 3x + 1 < 4
16 < 3x + 1 < 4
16 < 3x + 1
-1 to both sides
15<3x
/3 to both sides
5
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It's wrong. First of all, 16 cannot be less than 4.
Is there a mistake in the question?
??? I thought with these types of problems you have to split them up from 16 < 3x + 1 < 4 to two equations; 16 < 3x +1 and 3x +1<4.
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