x-3/7x=21【解方程】
解方程:2(X-3)(X+5)=X平方+(X+2)(X-2)+(X+7)
解方程:4(x^2-7x+10)-(2x+3)(2x-1)=-21
解方程:(x^2 + 7x + 5)^2 - 3x^2 - 21x=19
x-3/7x=21【解方程】
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)
解分式方程 x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8