两边同乘(x-2)(x+3)(x-4)解得x=1
5x/(x2+x-6)+(2x-5/x2-x-12)=7x-10/x2-6x+8
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8x-6=3-x -7x+4=2x-5 10x-6=7x+12 1-5/2x=2x+10
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解分式方程(5-2x)/(x^2-x-12)=5x/(x^2+x-6)+(10-7x)/(x^2-6x+8)得
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化简分式:5xx2+x−6+2x−5x2−x−12−7x−10x2−6x+8
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化简分式:5xx2+x−6+2x−5x2−x−12−7x−10x2−6x+8
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化简分式:5xx2+x−6+2x−5x2−x−12−7x−10x2−6x+8
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因式分解:(1)x^2-7x+6(2)x^2-5x+6(3)x^2-5x-6(4)x^2-7x+8(5)x^2-7x+1
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1.8+x=2 x=?x-7.5=2.5 x=?1.2x=4.8 x=?x/0.5=12 x=?x+1.2=9.6 x=
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解方程: 3x-1.5x=6 x+3.7=6 7.2+2x=10 x-2.3=10.7 6x-2.8x=32 x/15=
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1)2x+8=16 (2)x/5=10 (3)x+7x=8 (4)9x-3x=6 (5)6x-8=4 (6)5x+x=9
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解方程.7x-9=5x5(x-8)=3x 7x-5x5=2x7X12-10x=18x3(6x-7)=15x+12