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OpenStudy (anonymous):
3|x| - 2 = |x| + 1
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OpenStudy (zarkon):
can you solve it if it were \[3u - 2 = u + 1\]
OpenStudy (anonymous):
and then you just substitute back u = |x|? so would it be x = +/- 3/2?
OpenStudy (zarkon):
yes
OpenStudy (anonymous):
thanks!
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