Jessibell9 Jessibell9

24-08-2014
Mathematics

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15=7-|2x|
Solve for x in this absolute value equation.

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konrad509 konrad509

24-08-2014

[tex]15=7-|2x|\\ -|2x|=8\\ |2x|=-8\\ x\in\emptyset[/tex]

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Аноним Аноним

24-08-2014

[tex]7-|2x|=15\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\-|2x|=8\\\\|2x|=-8-FALSE\\\\x\in\O\ because\ |a|\geq0\ for\ each\ a\in\mathbb{R}[/tex]

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