Michelle C.

asked • 01/28/16# |2x + 1| = 3

Solve the inequality. Express the answer using interval notation.

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## 1 Expert Answer

Yurong C. answered • 01/28/16

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First step is seperate this inequality into two parts. First part is 2x+1=3,second part is 2x+1=-3.

Second step is solving the first part. 2x+1=3. 2x=3-1 2x=2. X=1

Third step is solving the second part. 2x+1=-3, 2x=-3-1, 2x=-4,x=-2.

so this question has two answers: x=1 or x=-2

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Michelle C.

01/29/16