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Let \(a\oplus b=3a+4b\) for all real numbers a and b. Find \(3\oplus 1\).

 Aug 11, 2019
 #1
avatar+18963 
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Substitute in 3 for a   and 1 for b

3(3) + 4(1) = 9+4 = 13

 Aug 12, 2019

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