SOLUTION: Four times a number increased by seven must be at least 31 but at most 55. Which interval represents the values of the number in this situation?

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Question 989564: Four times a number increased by seven must be at least 31 but at most 55. Which interval represents the values of the number in this situation?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Four times a number increased by seven must be at least 31 but at most 55. Which interval represents the values of the number in this situation?
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31 <= 4x+7 <= 35
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Subtract 7 along the line to get::
24 <= 4x <= 28
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Divide by 4 along the line to get::
6 <= x <= 7
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Cheers,
Stan H.
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