神马作文网
解方程:2(X-3)(X+5)=X平方+(X+2)(X-2)+(X+7)
解方程2x-27=7x+13
解方程7x(13-X)=3X(X+7)
解方程：2x+x/3=5/27,x/2+3/7x=13/28
解方程(x+1)(x+3)+4x=-13
解方程：7x-2x+3x=36
解方程7x-2x+3x=36
解方程x(x-7)=3x+24
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程】(x+8)/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程：（x-8）/(x-3)-(x-9)/(x-4)=(x+7)/(x+8)-(x+2)/(x+3)
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)