SOLUTION: -17 < 3x + 4 and 3x + 4 < 22

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Question 499142: -17 < 3x + 4 and 3x + 4 < 22
Answer by deborabr(181) About Me  (Show Source):
You can put this solution on YOUR website!
-17 < 3x + 4 and 3x + 4 < 22
first
-17 < 3x + 4
-17-4 < 3x
-21 < 3x
-21/3 < x
-7 < x
second
3x + 4 < 22
3x < 22 - 4
3x < 18
x < 18/3
x < 6