0.8(3y-6-y)=3y-6+y-13.2
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0.8(3y-6-y)=3y-6+y-13.20.8(3y-6-y)=3y-6+y-13.20.8(3y-6-y)=3y-6+y-13.22.4y-4.8-0.8y=4y-19.20.8y=14.4y
0.8(3y-6-y)=3y-6+y-13.2
0.8(3y-6-y)=3y-6+y-13.2
0.8(3y-6-y)=3y-6+y-13.2
2.4y-4.8-0.8y=4y-19.2
0.8y=14.4
y=18
0.8(2y-6)=4y-19.2
1.6y-4.8=4y-19.2
2.4y=14.4
y=6
原式:2.4y-4.8-0.8y=3y-6+y-13.2
1.6y-4.8=4y-19.2
14.4=2.4y
y=6
y (3y^2+8y-3)-6y(3y+2y-1)+9y
(y^2)^4y-(-2y)^3y^6=
通分 y+3/y*y-6y+9,1/2y+6,y-1/y*y-9
y''-5y'+6y=3x+1通解
3Y-2=Y+1+6Y
3y+2=y-1+6y 不要分数
3y+2=1+6y
3y+2=1+6y
y=(y')^3+y'
常微分方程的通解dy/dx=(x-y+1)/(x+y-3)y^4=2y^n+y=0y''+6y'+9y=e^(-3x)y''+y'-2y=4e^(2x)
0.8(3y-6-y)=3y-6+y-13.2
2y+5/3y-6-y/2=5y-4/2y-4
4y(y-1)=3 3y^2+2√6y=-2
解3y+5/3y-6=1/2+5y-4/2y-4
(3y-1)(2y-3)+(6y-5)(y-4)=?xie
(3y-1)(2y-3)+(6y+5)(y-4)=?
(y+1)分之(2y+3)=(3y+4)分之(6y+7)
2(x+y)-3(x-y)=1 6(x+y)+(x-y)=51