m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,

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m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,mx/2+mn/2=

m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,
m/2×(x+n)=1/3×(x+m)
(只要求出x的值即可,

m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,
mx/2+mn/2=x/3+m/3
(3m-2)x/6=(2m-3mn)/6
x=(2-3n)m/(3m-2)

m/2*x+m/2*n=1/3*x+1/3*m
m/2*x-1/3*x=1/3*m-m/2*n
x(m/2-1/3)=1/3*m-m/2*n
x=(1/3*m-m/2*n)/(m/2-1/3)