Find the value of the unknown x: (1/4)(x+3)-5=12.
求未知数x的值：(1/4)(x+3)-5=12．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 3</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">12 - (3/4)</gadget>
<output>45/4 = around 11.25</output>

<gadget id="calculator">5 + (45/4)</gadget>
<output>65/4 = around 16.25</output>

<gadget id="calculator">(65/4) / (1/4)</gadget>
<output>65</output>

<result>65</result>