n-m等于-3则4-2m+2n等于几

n-m等于-3则4-2m+2n等于几
n-m等于-3则4-2m+2n等于几

n-m等于-3则4-2m+2n等于几
4-2m+2n=4+2(n-m)=4+2*(-3)=-2

10对不起我错了！

n-m等于-3则4-2m+2n等于几 若|m-3|+|n+2|等于0,则m+2n等于几 若m的绝对值等于7,则m等于几;若n^2等于36n等于几 若m减n的绝对值等于n减m,m的绝对值等于4,n的绝对值等于3,则m减n等于几 若有理数m,n满足m-2n=4,2m-n=3,则m+n等于 若m等于-5a+3b,N等于2a-7b,则M+N等于【】,M-N等于【】 若m等于-5a+3b,N等于2a-7b,则M+N等于【】,M-N等于【】 若3的m次方等于2,9的n次方等于5,则3的2m减4n加1次方等于几, 当n等于1时m等于3,n等于2时m等于6,n等于3时m等于10,n等于4时m等于15,求m与n的关系式 |m-n|=n-m,m的绝对值等于4,n的绝对值等于3,则m-n等于 m等于几 n等于几? m+n=2,mn=-2,则（1-m）（1-n）等于几? (3m-2n)-(3m-6n+5)等于几 当3m=2n,z则(m/m+n)+(n/m-n)-(n2/m2-n2)等于多少? 1.若/a/=/-4/,则a= 2.若/m-2/=0,则/m+1/= 3.若/m/+/n/=0,则m、n各等于多少4.若/m-1/+/n+2/=0,则m、n各等于几?5.若/m+2/+/n-3/+/f-4/=0,则/m/+n+f= n等于1时m等于5,n等于2时m等于8 n等于3时m等于11,n等于4时m等于14,第n个图中小圆圈为m,则m等于? (用含n的代数式表示) (-m^2n^3)^6/(-m^2n^3)等于 (m-n+3)(m+n-2)等于多少