解方程:x−7x−9+x−3x−5=x−4x−6+x−6x−8.
解方程:
+
=
+
.
x−7 |
x−9 |
x−3 |
x−5 |
x−4 |
x−6 |
x−6 |
x−8 |
数学人气:821 ℃时间:2020-03-24 07:31:16
优质解答
1+2x−9+1+2x−5=1+2x−6+1+2x−8,1x−9+1x−5=1x−6+1x−81x−8-1x−9=1x−5-1x−61(x−8)(x−9)=1(x−5)(x−6)(x-8)(x-9)=(x-5)(x-6)x2-17x+72=x2-11x+306x=42x=7,经检验:x=7是原分式方程的解....
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