(m/3)+1和2m-7/3互为相反数,m等于几

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(m/3)+1和2m-7/3互为相反数,m等于几
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(m/3)+1和2m-7/3互为相反数,m等于几
(m/3)+1和2m-7/3互为相反数,m等于几

(m/3)+1和2m-7/3互为相反数,m等于几
m/3+1=-(2m-7/3)
m/3+1+2m-7/3=0
(7/3)m=4/3
m=4/7