SOLUTION: -1< or equal to 2x+1<or equal to 3

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Question 621749: -1< or equal to 2x+1
Found 3 solutions by ewatrrr, Alan3354, vleith:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

 -1 ≤ 2x + 1 ≤ 3

 -2 ≤ 2x  ≤ 2

 -1 ≤ x  ≤ 1

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
-1< or equal to 2x+1 < or equal to 3
-1 <= 2x+1 <=3
Subtract 1
-2 <= 2x <=2
Divide by 2
-1 <= x <= 1

Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
-1+%3C=+2x%2B1+%3C=+3
break into two halves
-1+%3C=+2x%2B1 and 2x%2B1+%3C=+3 now solve each separately
-1+%3C=+2x%2B1
-2+%3C=+2x
-1+%3C=+x
and 2x%2B1+%3C=+3
2x%3C=+2
x+%3C=1
now put them back together
-1+%3C=+x+%3C=+1