3(y-2)=4y-5

2y+5/3y-6-y/2=5y-4/2y-4 2(y-4)(3y+2)-5(-3y+7)(y+1),其中y=-1 5(y-2)-7(y+3)=11(y+4) （2y-3)(-y+4)=(y-2)(y-5)-3y(y-7/3)解方程 (y^2)^4y-(-2y)^3y^6= 3(y-2)=4y-5 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! 数学题=y(y+3)-4(y+3)2=(y+3)(y-4y-12) 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 （2y+5/3y）²-5y×（5/3y+y）=4 求y的值.(2y+5/3y)的平方-5y×(5/3y+y)=4 解3y+5/3y-6=1/2+5y-4/2y-4 4(2y+5)-3y=7(y-5)+4(2y+1) 初一数学解方程：（y+4)/5-(y-5)=(y+3)/3-(y-2)/2 3-5-2y/5=y-4-7y/10+y+2/2 10y-2(7y-2)=5(4y+5)-3y 10y+2(7y-2)=5(4y+3)+3y怎么算