Solve the equation: 78x-38x=82.
解方程：78x-38x=82．
<gadget id="calculator">78 - 38</gadget>
<output>40</output>

<gadget id="calculator">82 / 40</gadget>
<output>41/20 = around 2.05</output>

<result>41/20 = around 2.05</result>