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=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)
已知x^m=2,x^n=5.(1)x^m+n、x^m-n的值;(2)求x^3m-2n的值
x^m×(x^n)^3÷[x^(m-1)×2x^(n-1)]=
m/2×(x+n)=1/3×(x+m)(只要求出x的值即可,
2x+n/m=m/n-(m/n+n/m)x(m+n不等于0)
m=2x+1,n=x-1且m-3n=0求x和m+n!
m=2x+1,n=x-1且m-3n=0求x和m+n
解方程:2(x-3)(x+1)=x²+(x-1)(x+2)先化简,再求值:[(m+n)(n-m)-(m+n)²+3m(m+n)]÷(-2m)],其中m=-3,n=1
已知x^m=1/3,x^n=2,求x^2m+3n
设M=3x^2-x+1,N=2x^2+x,则( ) A.M>N B.M<N C.M≤N D.M≥N谢谢了,
已知x=2m-3n根号m+n+3是m+n+3的算术平方根,y=m-n+1根号m+2n是m+2n的立方根,求(x-y)的2006次方
设集合M={x|x=2n+1,n∈N},N={x|x=3n,n∈N},则M∩N=
m^2(x-n)=n^2(x-m)(m^2≠n^2)
x^m÷x^n=x^m*x^n,求7(2n-1)^5
解方程:m/x-1/n=n/x-1/m(m≠n)
解方程:x/m-2n=x/n-2m (m≠n)
(2)|x-1|+|3-x|2.已知|m-n|+|n-9|=0,求m+n的值.
计算:(1)(m-n)^2*(n-m)^5*(m-n)^5 (2)(-x)^2*x^3+2x^3*(-x)^2-x*x^4
解关于X的方程:1/3m(m-n)=1/4(x+2m)