3|2x-4|
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|2x-4| can equal 2x-4 or -(2x-4).
Let's take each case separately.
3(2x-4)
6x-12
5x<13
x<13/5
-3(2x-4)
-6x+12
11<7x
x>11/7
So 11/7 < x < 13/5.
Let's take each case separately.
3(2x-4)
x<13/5
-3(2x-4)
x>11/7
So 11/7 < x < 13/5.
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Try this:
http://www.wolframalpha.com/input/?i=3%7C2x-4%7C%3Cx%2B1
http://www.wolframalpha.com/input/?i=3%7C2x-4%7C%3Cx%2B1
1
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