m取何值时,2m-1/2(6m-8)的值等于m?

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m取何值时,2m-1/2(6m-8)的值等于m?

m取何值时,2m-1/2(6m-8)的值等于m?
m取何值时,2m-1/2(6m-8)的值等于m?

m取何值时,2m-1/2(6m-8)的值等于m?
m=2

列等式,解得:m=(9+根号69)\12
m=(9-根号69)/12

m=1/4