解方程:2x+93x−9=4x−7x−3+2
解方程:2x+93x−9=4x−7x−3+2
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)
解方程:x−2x+2+4x
解方程:2x−1−3x+1=x+3x
用换元法解方程2(x−1)x+3+6(x+3)x−1=7
已知关于x的方程3 [x−2(x−a3)]=4x
方程x+1x+2+x+8x+9=x+2x+3+x+7x+8
解方程(x-2)/(x-3)-(x-3)/(x-4)=(x-5)/(x-6)-(x-6)/(x-7)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解方程:xx−2+ x−9x−7= x+1x−1+ x−8x−6