Solve the column equation: 8.2 minus 2 times X is equal to 6, find this number.
列方程求解：8.2减去X的2倍等于6，求这个数．
<gadget id="calculator">8.2 - 6</gadget>
<output>2.2</output>

<gadget id="calculator">2.2 / 2</gadget>
<output>1.1</output>

<result>1.1</result>