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Asked by torkt

Explain why the equation 5|x|-7=7 has only one solution.
6 years ago

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Answered by oobleck
5|x|-7 = 7
5|x| = 14
|x| = 14/5

Looks like there are two solutions to me...
Now, if it had been 5|x| + 7 = 7 then only x=0 works.
6 years ago
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Explain why the equation 5|x|-7=7 has only one solution.

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