-10y=39+3y y=?
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-10y=39+3yy=?-10y=39+3yy=?-10y=39+3yy=?-10y=39+3y-10y-3y=39-13y=39y=-3
-10y=39+3y y=?
-10y=39+3y y=?
-10y=39+3y y=?
-10y=39+3y
-10y-3y=39
-13y=39
y=-3
y=(y')^3+y'
-10y=39+3y y=?
10y+7=22y-11-3y
方程y''-3y'-10y=0的通解
10y+7=22y-5-3y 10y+7=22y-5-3y
(y^2)^4y-(-2y)^3y^6=
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y[y-3(x-y)]+y[3y-(y-3x)]=?
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y(y-2)²-y(y+3)(y-5) y=1/2 化简求值
y-12/y=?
(x+y)(x+y-10)+25=0,且x-y=3,求x,y
(x+y)(x+y-10)+25=0,且x-y=3,求x,y
10y+7=22y-5-3y y=?
10y+2(7y-2)=5(4y+3)+3y怎么算
10y-2(7y-2)=5(4y+5)-3y
3y-2(10-y)=4y-5(8-y)