m/3和2m-7/3互为相反数,m等于几

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m/3和2m-7/3互为相反数,m等于几
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m/3和2m-7/3互为相反数,m等于几
m/3和2m-7/3互为相反数,m等于几

m/3和2m-7/3互为相反数,m等于几
m/3+2m-7/3=0
m+6m-7=0
m=1