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

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User Vencedor
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2 Answers

5 votes

15=7-|2x|\\ -|2x|=8\\ |2x|=-8\\ x\in\emptyset
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User Jonathan Perry
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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}
15=7-|2x| Solve for x in this absolute value equation.-example-1
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User Next
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