Let R, S, T be subsets of the universal set U such that n(U) = 64, n(R U S U T) = 45, n(R) = 22, n(T) =26, n(R intersection S) = 4, n( S intersection T) = 6, (R intersection T) = 8, n( R intersection S Intersection T) = 1 What is the number of elements in R only PLUS the number of elements in T only?

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