It is known that both A and B are one-digit natural numbers and satisfy: ((A+2)*B-1)/7=2, then what is the sum of A and B? (A≠B)
已知A和B都是一位自然数，且满足：((A+2)*B-1)/7=2，那么A与B的和是多少？(A≠B)
<gadget id="calculator">1 + 5</gadget>
<output>6</output>

<result>6</result>