2013
Mathematics
67ca00ce0c643c71d77dee1f
Solve for x: |x - 2| < 3
A.
x < 5
B.
-2 < x < 3
C.
-1 < x < 5
D.
x < 1
Correct Answer: -1 < x < 5
Explanation
|x - 2| < 3 implies -(x - 2) < 3 .... or .... +(x - 2) < 3 -x + 2 < 3 .... or .... x - 2 < 3 -x < 3 - 2 .... or .... x < 3 + 2 x > -1 .... or .... x < 5 combining the two inequalities results, we get; -1 < x < 5
|x - 2| < 3 implies -(x - 2) < 3 .... or .... +(x - 2) < 3 -x + 2 < 3 .... or .... x - 2 < 3 -x < 3 - 2 .... or .... x < 3 + 2 x > -1 .... or .... x < 5 combining the two inequalities results, we get; -1 < x < 5THIS WEEK's
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