<h5>If 3a+5b=10 and 5a+3b=30, what is the average of a and b?</h5>

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If 3a+5b=10 and 5a+3b=30, what is the average of a and b?

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If 3a+5b=10 and 5a+3b=30, what is the average of a and b?