设梨树x棵,x-120=120x1/3,解得：x=160.
思路：多出的棵数=桃树x1/3
果园里有桃树120颗,梨树比桃树多三分之一.梨树有多少棵?方程
果园里有桃树120颗,梨树比桃树多三分之一.梨树有多少棵?方程
数学人气：365 ℃时间：2020-04-01 19:54:18
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