8y+12=8-8y-5y+10

8y+12=8-8y-5y+10 [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),'.') 8y-4=12-5y+9y (－7y)+12y-8y y-7y=8 y=? 3y-2（10-y)=4y-5(8-y) 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 (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian 因式分解 (y^2+y)^2-8(y^2+y)+12 12y=7.6+8y y是多少 12y(x-y)^2-8(x-y)^3=? 10(8-y)+6y=56 8=3-5y,求y 8y-3=5y+3 5y十8y=多少 y+y+x=10,x+y+x=8,y=?,x=? x+(9-8-y)=10 y+y-(9-8-y)=2 x-y=xx-9.9x xy=11y-1 y=? x=? x+y-xy=?x+(9-8-y)=10y+y-(9-8-y)=2x-y=xx-9.9xxy=11y-1 y=?x=?x+y-xy=? X+Y-8X+10Y+41=O,求X/Y-Y/X的值