Solve the equation: 8x-16=5x+29.
解方程：8x-16=5x+29．
<gadget id="calculator">16 + 29</gadget>
<output>45</output>

<gadget id="calculator">8 - 5</gadget>
<output>3</output>

<gadget id="calculator">45 / 3</gadget>
<output>15</output>

<result>15</result>