求m,n使y=(m-1)x-n+7满足垂直于7x-y+15=0的直线方程

求m,n使y=(m-1)x-n+7满足平行于X轴的直线方程 求m,n使y=(m-1)x-n+7满足垂直于7x-y+15=0的直线方程 已知单项式M、N满足2x(M+3x)=6x^2y^2+N,求M、N. 已知单项式M,N满足3x(M-5x)=6x^2y^3+N,求M,N 已知,单项式M,N满足2x（M+3x)=6x²y²+N,求M,N 已知单项式M、N满足（6x^2y^3-M）/n=-2x+3,求M、N 已知单项式M N满足3x(M-5x)=6x^2y^2 求M N 已知单项式M、N满足等式：2x(M-x）=6x²y三次方+Nx²,求M、N.上面是求M+N. 已知实数m n满足:m/x-1+n/x+2=2x+7/(x-1)(x+2).求m和n 若椭圆x*x/m*m+y*y/n*n=1(m,n>0)过点(3,1),求m*m+n*n的最小值 若单项式M,N满足2x（M+3x）=6*x*x*y*y+N,求M,N 已知2^=x,2^n=y,m,n都是正整数,m>=n,求2^m-n+1 x-y=5,m+n=7求（y+m)-(x-n)的值 已知:单项式M,N满足2x(M+3x)=6x的2次方y的2次方+N,求M,N 已知单项式M、N满足2x(M+3x)=6x^2y^2+N,求MN注意是M乘N 已知:单项式M,N满足2x(M+3x)=6x^2y^2+N,求M,N的值. 已知单项式M、N满足等式3x（M-5x）=6x²y³+N,求M、N 已知单项式M N满足等式3x（m－5x）=6x²y²+N求M N