3-y/2+y=7y-6/8 怎么算
3-y/2+y=7y-6/8 怎么算
1.5y+8y-6y=2y-3
10y+2(7y-2)=5(4y+3)+3y怎么算
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
先化简,在求值:6y-(y+2分之y + 2-y分之y)除以y³-4y-2y²+8分之y,其中y=
8y+12=9y-2怎么算
y-7-8y=2y-3-5y 咋写?
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于
解方程:(y+4)/5+y+6=(y+8)/2-(y+4)/3
x^8-x^7y+x^6y^2-x^5y^3+x^4y^4-x^3y^5+x^2y^-xy^7+y^8
解方程:10y-2(7y-2)=5(4y+3)-2y怎么解
3x+2=y 5X+4=Y 7X+6=Y 9X+8=y 11x=y要如何计算