①6x+31=49②7x/3=8.19③32.8-9x=17.5④x-0.36x=16⑤6*7+3x=69⑥6x+2x-56=0.
①6x+31=49②7x/3=8.19③32.8-9x=17.5④x-0.36x=16⑤6*7+3x=69⑥6x+2x-56=0．
<gadget id="calculator">6 + 2</gadget>
<output>8</output>

<gadget id="calculator">56 / 8</gadget>
<output>7</output>

<result>7</result>