ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³×ÔÐгµ³§Ò»ÖÜÉú²ú×ÔÐгµ7xÁ¾£¬Æ½¾ùÿÌìÉú²úxÁ¾£¬µ«ÓÉÓÚÖÖÖÖÔÒò£¬Êµ¼ÊÿÌìÉú²úÁ¿Óë¼Æ»®²úÁ¿Ïà±ÈÓгöÈ룬ϱíÊÇijÖܵÄÉú²úÇé¿ö£¨³¬²ú¼ÇΪÕý£¬¼õ²ú¼ÇΪ¸º¡££©
ÐÇÆÚ | Ò» | ¶þ | Èý | ËÄ | Îå | Áù | ÈÕ |
Ôö²ú | +5 | £2 | £4 | +13 | £10 | +16 | £8 |
(1)¸ù¾Ý¼Ç¼µÄÊý¾Ý¿ÉÖª¸Ã³§ÐÇÆÚËÄÉú²ú×ÔÐгµ________Á¾£¬ÐÇÆÚÎåÉú²ú×ÔÐгµ_______Á¾¡£
(2)¸ù¾Ý¼Ç¼µÄÊý¾Ý¿ÉÖª¸Ã³§±¾ÖÜʵ¼ÊÉú²ú×ÔÐгµ_________Á¾¡£
(3)²úÁ¿×î¶àµÄÒ»Ìì±È²úÁ¿×îÉÙµÄÒ»Ìì¶àÉú²ú______Á¾¡£
(4)Èôx=300£¬¸Ã³§ÊµÐÐÿÖܼƼþ¹¤×ÊÖÆ£¬Ã¿Éú²úÒ»Á¾×ÔÐгµ£¬¿ÉµÃ60Ôª£¬Èô³¬¶îÍê³ÉÈÎÎñ£¬Ôò³¬¹ý²¿·ÖÿÁ¾Áí½±20Ôª£¬ÈôδÍê³ÉÈÎÎñ£¬Ã¿ÉÙÉú²úÒ»Á¾¿Û10Ôª£¬ÄÇô¸Ã³§¹¤ÈËÕâÒ»ÖܵŤ×Ê×ܶîÊǶàÉÙÔª£¿
¡¾´ð°¸¡¿ 26
¡¾½âÎö¡¿·ÖÎö£º£¨1£©¸Ã³§ÐÇÆÚËÄÉú²ú×ÔÐгµ(x+13)Á¾, ÐÇÆÚËÄÉú²ú×ÔÐгµ(x-10)Á¾£»
£¨2£©¸Ã³§±¾ÖÜʵ¼ÊÉú²ú×ÔÐгµ£¨7x+10£©Á¾£»
£¨3£©²úÁ¿×î¶àµÄÒ»Ìì±È²úÁ¿×îÉÙµÄÒ»Ìì¶àÉú²ú26Á¾£»
£¨4£©ÕâÒ»ÖܵŤ×Ê×ܶîÊÇ12679Ôª£®
±¾Ìâ½âÎö£º(1)¸ù¾Ý¼Ç¼µÄÊý¾Ý¿ÉÖª¸Ã³§ÐÇÆÚËÄÉú²ú×ÔÐгµÁ¾£¬ÐÇÆÚÎåÉú²ú×ÔÐгµÁ¾.
(2)¸ù¾Ý¼Ç¼µÄÊý¾Ý¿ÉÖª¸Ã³§±¾ÖÜʵ¼ÊÉú²ú×ÔÐгµÁ¾.
(3)²úÁ¿×î¶àµÄÒ»Ìì±È²úÁ¿×îÉÙµÄÒ»Ìì¶àÉú²ú26Á¾.
(4)(7¡Á300+10)¡Á60+9¡Á2=12679.