解方程: x-5/x-6+x-8/x-9=x-7/x-8+x-6/x-7 过程!
来源:学生作业帮 编辑:拍题作业网作业帮 分类:数学作业 时间:2024/04/29 11:08:49
解方程: x-5/x-6+x-8/x-9=x-7/x-8+x-6/x-7 过程!
/>因为:x-5/x-6+x-8/x-9=x-7/x-8+x-6/x-7,所以:1+1/(x-6)+1+1/(x-9)=1+1/(x-8)+1+1/(x-7)
即:1/(x-6)+1/(x-9)=1/(x-8)+1/(x-7)
所以:1/(x-6)-1/(x-7)=1/(x-8)-1/(x-9)
所以:[(x-7)-(x-6)]/[(x-6)(x-7)]=[(x-9)-(x-8)]/[(x-8)(x-9)]
所以:(x-6)(x-7)=(x-8)(x-9)
即:x^2-13x+42=x^2-17x+72,则:4x=30,解得:x=15/2
即:1/(x-6)+1/(x-9)=1/(x-8)+1/(x-7)
所以:1/(x-6)-1/(x-7)=1/(x-8)-1/(x-9)
所以:[(x-7)-(x-6)]/[(x-6)(x-7)]=[(x-9)-(x-8)]/[(x-8)(x-9)]
所以:(x-6)(x-7)=(x-8)(x-9)
即:x^2-13x+42=x^2-17x+72,则:4x=30,解得:x=15/2
解方程: x-5/x-6+x-8/x-9=x-7/x-8+x-6/x-7 过程!
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
解分式方程 x-7/x-9+x-3/x-5=x-4/x-6+x-6/x-8
解方程:(x+3)/(x+2)-(x+5)/(x+4)=(x+7)/(x+6)-(x+9)/(x+8)
解方程,要写过程,急(x+6)/(x+5)+(x+10)/(x+9)=(x+7)/(x+6)+(x+9)/(x+8)
解方程:x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)