SOLUTION: I know the answer is -2 or 2 but I don't know how to write the answer for the absolute value if x+1=3 The absolute value marks go around x+1

Algebra ->  Absolute-value -> SOLUTION: I know the answer is -2 or 2 but I don't know how to write the answer for the absolute value if x+1=3 The absolute value marks go around x+1      Log On


   



Question 950994: I know the answer is -2 or 2 but I don't know how to write the answer for the absolute value if x+1=3
The absolute value marks go around x+1

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+abs%28+x+%2B+1+%29+=+3+
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What you know is:
+abs%28+3+%29+=+3+
and
+abs%28+-3+%29+=+3+
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So, the 2 solutions are:
+x+%2B+1+=+3+
+x+%2B+1+=+-3+
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solving for x:
+x+=+2+
+x+=+-4+