The sum of 5 times a number and 278 is 3288. Find this number.
一个数的5倍与278的和是3288，求这个数．
<gadget id="calculator">3_288 - 278</gadget>
<output>3_010</output>

<gadget id="calculator">3_010 / 5</gadget>
<output>602</output>

<result>602</result>