3(20-y)=6y-4(y-11)

解方程：4y-3(20-y)=6y-7(11-y）解方程：4y-3(20-y)=6y-7(11-y）解方程：4y-3(20-y)=6y-7(11-y）4y-60+3y=6y-77+7y6y=17y=1

4y-3(20-y)=6y-7(11-y)4y-3(20-y)=6y-7(11-y)4y-3(20-y)=6y-7(11-y)4y-3(20-y)=6y-7(11-y)4y-60+3y=6y-77+7

解方程4y-3(20-y)=6y-7(11-y)求过程解方程4y-3(20-y)=6y-7(11-y)求过程解方程4y-3(20-y)=6y-7(11-y)求过程4y-3(20-y)=6y-7(11-

4y-3(20-y)=6y-7(11-y)解方程4y-3(20-y)=6y-7(11-y)解方程4y-3(20-y)=6y-7(11-y)解方程4y-3(20-y)=6y-7(11-y)4y-60+3

(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=(y^2)^4y-(-2y)^3y^6=y^8*y+8y^3y^6=y^9+8y

x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20由(1)得3x

{(x+y)/2+(x-y)/3=64(x+y)-3(x-y)=-20{(x+y)/2+(x-y)/3=64(x+y)-3(x-y)=-20{(x+y)/2+(x-y)/3=64(x+y)-3(x-y

4(x+y)-3(x-y)=-20,2/x+y+3/x-y=64(x+y)-3(x-y)=-20,2/x+y+3/x-y=64(x+y)-3(x-y)=-20,2/x+y+3/x-y=6第二个方程是不

4y-3(20-y)=6y-7(9-y)解方程4y-3(20-y)=6y-7(9-y)解方程4y-3(20-y)=6y-7(9-y)解方程4y-3(20-y)=6y-7(9-y)4y-60+3y=6y

4y-3(20-y)=6y-7(9-y)咋解?4y-3(20-y)=6y-7(9-y)咋解?4y-3(20-y)=6y-7(9-y)咋解?4y-3(20-y)=6y-7(9-y)去括号4y-60+3y

4y-3(20-y)=6y-7(9+y)解方程4y-3(20-y)=6y-7(9+y)解方程4y-3(20-y)=6y-7(9+y)解方程4y-3(20-y)=6y-7(9+y)4y-60+3y=6y

4y-3(20-y)=6y-7(9-y)4y-3(20-y)=6y-7(9-y)4y-3(20-y)=6y-7(9-y)这个,4y-3（20-y）=6y-7（9-y）把他们全部乘出来4y-60+3y=

解方程：4y-3(20-y)=6y-7(9-y)解方程：4y-3(20-y)=6y-7(9-y)解方程：4y-3(20-y)=6y-7(9-y)4y-3(20-y)=6y-7(9-y)4y-60+3y

4y-3(20-y)=6y-7(9-y)4y-3(20-y)=6y-7(9-y) 4y-3(20-y)=6y-7(9-y)4y-60+3y=6y-63+7y6y=3y=1/2外等于0.5

[T,Y]=ode45(@rigid,[01],[rand(15,1)]);plot(T,Y(:,1),''-'',T,Y(:,2),''-.'',T,Y(:,3),''.'',T,Y(:,4),''-'',T,Y(

3（20-y）=6y-4(y-11)解方程3（20-y）=6y-4(y-11)解方程3（20-y）=6y-4(y-11)解方程3（20-y）=6y-4(y-11)60-3y=6y-4y+4460-3y

3（20-y）=6y-4（Y-11）这个方程得多少啊?3（20-y）=6y-4（Y-11）这个方程得多少啊?3（20-y）=6y-4（Y-11）这个方程得多少啊?3（20-y）=6y-4（Y-11）6

2y+5/3y-6-y/2=5y-4/2y-42y+5/3y-6-y/2=5y-4/2y-42y+5/3y-6-y/2=5y-4/2y-42y+5/3y-6-y/2=5y-4/2y-42y+5/3y-

5(y-2)-7(y+3)=11(y+4)5(y-2)-7(y+3)=11(y+4)5(y-2)-7(y+3)=11(y+4)5(y-2)-7(y+3)=11(y+4)5y-10-7y-21=11y+

y"=(y'')^3+y''y"=(y'')^3+y''y"=(y'')^3+y''优化一下,y=arcsin（c1*e^x）+c2