Asked by torkt
Explain why the equation 5|x|-7=7 has only one solution.
Answers
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.
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.
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