{(m+n)/3-(n-m)/4=2 {4m+(n/3)=14 求m
1个回答
4(m+n)-3(n-m)=24
12m+n=42
7m+n=24
12m+n=42
推出5m=18
m=3.6
n= -1.2
相关问题
m+n/3-n-m/4=2 4m+n/3=14
解方程【过程!】①(m+n)/3-(n-m)/4=2 ②4m+n/3=14
(m-2n)(2n+m)-(-3m-4n)(4n-3m)=
(3m-4n)^2+2(3m-4n)(3m+4n)-3(3m+4n)^2
lm+n-3l+m^2n^2+4mn+4=0 求(4m-n)(m-2n)-(n-m)(-m-n)
如果m-3n+4=0 求(m-3n)^2+7m^3-3(2m^3n-m^2n-1)+3(m^3+2m^3n-m^2n+n
{-3/2m+n=4 {2m+n=-3 求m,n 注意,
已知2m-3n/3m+n=2,求4m-6n/9m+3n+18m+6n/4m-6n的值
若│M+4│=|N+4|,且M≠N,求3M+3N.
当m=4,n=-5时,求代数式2/3(2m-n)-2(4n-m)+(-3/4)(m+n)的值