Divide A by B, the quotient is 5, and the remainder is 7. What is the minimum value of A?
甲除以乙，商5，余7，甲最小是多少．
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<gadget id="calculator">40 + 7</gadget>
<output>47</output>

<result>47</result>