既然{x-2}+{y-三分之一}=0,那么x=2,y=三分之一..这点懂?
那么2x+3y=2×2+3×三分之一=5
已知{x-2}+{y-3分之1}=0,求2x+3y的值.
已知{x-2}+{y-3分之1}=0,求2x+3y的值.
数学人气:207 ℃时间:2020-02-04 03:36:34
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