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Masan8rjrsSiobankov
Masan8rjrsSiobankov Masan8rjrsSiobankov
  • 25-07-2016
  • Mathematics
Answered

assume n is an integer and solve for n. |2n - 3| = 5 {-4, -1} {1, 1} {-1, 4} {4, 4}

Verified Answer :

dalendrk
dalendrk dalendrk
  • 26-07-2016

\(|2n-3|=5\iff2n-3=5\ or\ 2n-3=-5\ \ \ |add\ 3\ to\ both\ sides\\\\2n=8\ or\ 2n=-2\ \ \ \ |divide\ both\ sides\ by\ 2\\\ =4\ or\ n=-1\\\\Answer:\boxed{\{-1;\ 4\}}\)

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