2(3y-4)+7(4-y)=4ygggggggggggggggggggg
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2(3y-4)+7(4-y)=4ygggggggggggggggggggg2(3y-4)+7(4-y)=4ygggggggggggggggggggg2(3y-4)+7(4-y)=4yggggggggg
2(3y-4)+7(4-y)=4ygggggggggggggggggggg
2(3y-4)+7(4-y)=4y
gggggggggggggggggggg
2(3y-4)+7(4-y)=4ygggggggggggggggggggg
6y-8+28-7y=4y
4y-6y+7y=28-8
5y=20
y=20÷5
y=4
2(3y-4)+7(4-y)=4y
6y-8+28-7y=4y
-y+20=4y
20=4y+y
20=5y
y=4
6y-8+28-7y=4y
-y+20=4y
-y-4y=-20
-5y=-20
y=4
选我哼(ˉ(∞)ˉ),当你朋友
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2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1
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10y+2(7y-2)=5(4y+3)+3y怎么算
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(y+1)分之(2y+3)=(3y+4)分之(6y+7)
10y-2(7y-2)=5(4y+5)-3y
[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),'.')
2y+5/3y-6-y/2=5y-4/2y-4
解分式方程(y+3)/(y^2+y)-1/(1-y)=4/y要过程
解方程3y+7/y+2+2/2-y=3-(3y/y的平方-4﹚
(3y+2)(y-4)-3(y-2)(y-3)