3y-2（10-y)=4y-5(8-y)

3y-2（10-y)=4y-5(8-y) [T,Y]=ode45(@rigid,[0 1],[rand(15,1)]);plot(T,Y(:,1),'-',T,Y(:,2),'-.',T,Y(:,3),'.',T,Y(:,4),'-',T,Y(:,5),'-.',T,Y(:,6),'.',T,Y(:,7),'-',T,Y(:,8),'-.',T,Y(:,9),'.',T,Y(:,10),'-',T,Y(:,11),'-.',T,Y(:,12),'-.',T,Y(:,13),'.',T,Y(:,14),'-',T,Y(:,15),'.') (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian 2y+5/3y-6-y/2=5y-4/2y-4 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 先化简,在求值：6y-(y+2分之y + 2-y分之y)除以y³-4y-2y²+8分之y,其中y= -2分之5先化简,在求值：6y-(y+2分之y + 2-y分之y)除以y³-4y-2y²+8分之y,其中y= -2分之5 3-5-2y/5=y-4-7y/10+y+2/2 10y-2(7y-2)=5(4y+5)-3y 10y+2(7y-2)=5(4y+3)+3y怎么算 解方程：(y+4)/5+y+6=(y+8)/2-(y+4)/3要过程 (y^2)^4y-(-2y)^3y^6= 数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12) y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 y(y-2)²-y(y+3)(y-5) y=1/2 化简求值 5(y-2)-7(y+3)=11(y+4) 3(2X+Y)+(2(2x-Y)=6 (8X+4y)-(10X-5Y)=2 (4x-2y-z)-{5x-[8y-2z-(x-2y)]-x-(3y-10z)}=?