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For all numbers \(s\) and \(t,\) the operation \(*\) is defined by \(s*t = (s - 1)(t + 1).\) If \((-2)*x = -12,\) then

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For all numbers \(s\) and \(t,\) the operation \(*\) is defined by \(s*t = (s - 1)(t + 1).\) If \((-2)*x = -12,\) then

by VJesus12 » Sun Sep 19, 2021 12:14 am

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For all numbers \(s\) and \(t,\) the operation \(*\) is defined by \(s*t = (s - 1)(t + 1).\) If \((-2)*x = -12,\) then \(x =\)

(A) 2
(B) 3
(C) 5
(D) 6
(E) 11

Answer: B

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