An engineering team spent a week adding asphalt to a road. 230 meters have been paved in the first 3 days, and it is estimated that X meters will be paved on average every day in the next 4 days. Find how many meters are paved in total, and what is the formula.
某工程队用一星期的时间给一条马路加铺沥青路面．前3天已经铺了230米，预计后4天平均每天要铺X米．求共铺了多少米，写成式子是多少．
<gadget id="calculator">230 + 4</gadget>
<output>234</output>

<result>234</result>