0.15x+0.2×(66-x)=[5x+9×(66-x)]×0.18 解x 急
解方程,要写过程,急(x+6)/(x+5)+(x+10)/(x+9)=(x+7)/(x+6)+(x+9)/(x+8)
x-0.2x=18解方程!急5x+1.6x=19.8 解方程
(5x*0.85+9(66-x)*0.8)/(5x+9(66-x))=1-0.18
⒈ 解方程 (X+7)/(X+6)+(X+9)/(X+8)=(X+10)/(X+9)+(X+6)/(X+5)
求方程解x-5/x-4+x-9/x-8=x-8/x-7+x-6/x-5
解分式方程:(x-4)/(x-5)+(x-8)/(x-9)=(x-7)/(x-8)+(x-5)/( x-6)
解分式方程(X-4)/(X-5)-(X-5)/(X-6)=(X-7)/(X-8)-(X-8)/(X-9)
解方程:(x-4)/(x-5)-(x-5)/(x-6)=(x-7)/(x-8)-(x-8)/(x-9)
解方程:x-4/x-5 -x-5/x-6=x-7/x-8 -x-8/x-9
解因式方程:x-4/x-5+x-8/x-9=x-7/x-8+x-5/x-6
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