1/3(3y-10--7y/2)-1/6(2y-2y+2/3)=y/2-1

解方程3y^2-(2y+1)(y-2)=(y-5)(y-1) 解方程：3y^2-(2y+1)(y-1)=(y-5)(y+1) 1.5y+8y-6y=2y-3 因式分解 (1)6(x-y)^3-3y(y-x)^2 (2)x(x-y)(a-b)-y(y-x)( 解3y+5/3y-6=1/2+5y-4/2y-4 {3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1 解方程,3y^3+(y+3)(6-2y)+3y(y+2)(2-y)-2(y^2+1)=0 1、(-7x^y)(2x^y-3xy^3+xy) 2、((x-y)^6)/((y-x)^3)/(x-y) 已知7/3*根号（9y）-y-2y*1/y=-2,求y的值 在y=1,y=2,y=3中,_________方程y=10-4y的解 若x、y满足2x+y=6,x-3y=1,求7y(x-3y)²-2(3y-x)³的值 解方程y-[3y-1]等于5【y+2]