(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)过程得有~~快!
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(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)过程得有~~快!(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)过程得有~~快!(4)3-1/5(5-2
(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)过程得有~~快!
(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)
过程得有~~快!
(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)过程得有~~快!
3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)
3-1+2/5y=4-2/5+7/10y+1/2y+1
7/10y+1/2y-2/5y=2-4.6
4/5y=-2.6
y=-3.25
等式两边同乘10得
30-2(5-2y)=40-(4-7y)+5(y+2)
30-10+4y=40-4+7y+5y+10
8y=-26
y=-13/4
(4)3-1/5(5-2y)=4-1/10(4-7y)+1/2(y+2)
3-1+2/5y=4-2/5+7/10y+1/2y+1
2/5y-7/10y-1/2y=2.6
-0.8y=2.6
y=-3.25
2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1
y-1/y-2 - y-3/y-4=y-2/y-3 - y-4/y-5一共有四个分数哦~希望可以快一点~谢谢!
解3y+5/3y-6=1/2+5y-4/2y-4
4(2y+5)-3y=7(y-5)+4(2y+1)
4(5—2y)+7(y+1)=3(4y-1)+17求y
4*(5—2y)+7(y+1)=3(4y-1)+17求y
(3y-1)(2y-3)+(6y-5)(y-4)=?xie
(3y-1)(2y-3)+(6y+5)(y-4)=?
w=(d 2*m 3*(m 1)/5 y y/4-y/100 y/400
1/2y+1=4y-2/5-y
化简[(3x+4y)^2-(2x+y)(2x-y)+(-x+y)(5x-y)]除以-2y,其中x=-1,y=1
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
[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),'.')
(96/y²16)+(3y-1/4-y)=(2y-1/y+4)-5
计算:[(y+1)/(y^2-4y+3)减去(y-2)/(y^2-6y+9)]除以(y-5)/(y-1)
已知(3x+1)(3x-3)-3x+2)^2=-7,(y+7)(y-7)-y(y-7)=0,求8y^2-5y(-y+3x)+4y(-4y-5/2x)的值