Solve the equation: 0.3(x+1.6)=7.8-1.7x.
解方程：0.3(x+1.6)=7.8-1.7x．
<gadget id="calculator">0.3 * 1.6</gadget>
<output>0.48</output>

<gadget id="calculator">7.8 - 0.48</gadget>
<output>7.32</output>

<gadget id="calculator">0.3 + 1.7</gadget>
<output>2</output>

<gadget id="calculator">7.32 / 2</gadget>
<output>3.66</output>

<result>3.66</result>