(7y-4)+3(y-2)=2+6
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(7y-4)+3(y-2)=2+6(7y-4)+3(y-2)=2+6(7y-4)+3(y-2)=2+6(7y-4)+3(y-2)=2+6去括号:7y-4+3y-6=2+6移向.7y+3y=2+6+6+
(7y-4)+3(y-2)=2+6
(7y-4)+3(y-2)=2+6
(7y-4)+3(y-2)=2+6
(7y-4)+3(y-2)=2+6
去括号:7y-4+3y-6=2+6
移向.7y+3y=2+6+6+4
合并同类项:10y=18
两边同时除以10:y=1.8
7y-4+3y-6=2+6=8
10y-10=8
10y=10+8=18
y=1.8
(7y-4)+3(y-2)=2+6
7y-4+3y-6=8
10y=10+8
10y=18
y=1.8
(7y-4)+3(y-2)=2+6
即 7y-4+3y-6=8
10y-10=8
10y=18
y=1.8
(7y-4)+3(y-2)=2+6
7y-4+3y-6=8
10y=18
y=1.8
去括号 7y-4+3y-6=8
移项合并同类项 10y=18
化未知数系数为1 y=1.8
(y^2)^4y-(-2y)^3y^6=
(y+1)分之(2y+3)=(3y+4)分之(6y+7)
(y-4)(3y+2)-(3y-7)(2y+1),其中y=4/3
[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),'.')
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