SOLUTION: Solve: | | 3x+7| | <6
The answer I got were x<4,x>14 but I don't know how I to write it. Please let me know if my answer iscorrect
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Absolute-value
-> SOLUTION: Solve: | | 3x+7| | <6
The answer I got were x<4,x>14 but I don't know how I to write it. Please let me know if my answer iscorrect
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Question 988988: Solve: | | 3x+7| | <6
The answer I got were x<4,x>14 but I don't know how I to write it. Please let me know if my answer iscorrect Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website!
I know the left side cannot be negative,
since it's an absolute value, so both
these must be true:
-----------------------
Suppose , then
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Suppose ,
(1)
and
(2)
------------------
(1)
(1)
(1)
------------------
(2)
(2)
(2)
------------------
I have 3 equations now:
all of which must be true includes all three, so
that is my answer
