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Mathematics 7 Online
OpenStudy (anonymous):

Which of the following is equivalent to |x − 1| = 20? x − 1 = 20 x − 1 = 20 or x − 1 = -20 x − 1 = -20 none of the above

OpenStudy (radar):

\[x-1=\pm20\]

OpenStudy (radar):

Looks like the second one says the same thing, don't you agree?

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