Final answer:
The sum simplifies to 15/x.
Step-by-step explanation:
The given sum is 5(3/x) + 0(2/7).
Multiplying 5 by 3/x, we get 15/x.
Multiplying 0 by 2/7, we get 0.
Therefore, the sum simplifies to 15/x + 0.
Since any number added to 0 remains the same, the sum is simply 15/x.
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