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Find a+ b when:

2009a + 2008b = 2007

2008a + 2009b = 2008

 Aug 23, 2021
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From the 2 equations, a - b = -1

So 2008a - 2008b = -2008

so 4007a = -1

so a = 14007, so b = 40164017

 Aug 24, 2021

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