Given that a and B are opposite numbers, M = - (- 2), find 1 / 3M plus a + B / 2008
A and B are opposite numbers, so a + B = 0, so a + B = 0
M = - (- 2), if negative is positive, then M = 2 can be obtained
So find 1 / 3M plus a + B of 2008 = 1 / 6
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