若规定a*b=3分之a-2b,则当2*x=1时,x的值为
人气：243 ℃ 时间：2020-04-02 23:39:06
解答
已知,a*b = a/3-2b ,
可得：2*x = 2/3-2x ；
已知,2*x = 1 ,
可得：2/3-2x = 1 ；
解得：x = -1/6 .
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