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比a的5倍多20的数用式子表示是（ ）
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比x的5倍多3的数用式子表示是
（X+3）×5
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a与5的和的2倍用式子表示为
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乙数比甲数少25%
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比a的3倍多9的数用含有字母的式子表示是如果a=12那么这个式子的结果是．
比x的5倍多2的数用含有字母的式子表示是当x=4时这个数是．
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振兴小学校园里有杨树x棵柳树的棵数比杨树的2倍少10棵1用式子表示柳树的棵数2根据这个式子当x=25
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