(1/x+1/6)×1.2=1/2
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(1/x+1/6)×1.2=1/2(1/x+1/6)×1.2=1/2(1/x+1/6)×1.2=1/21.2/x+1.2/6=1/21.2/x+0.2=0.51.2/x=0.3x=1.2/0.3=4
(1/x+1/6)×1.2=1/2
(1/x+1/6)×1.2=1/2
(1/x+1/6)×1.2=1/2
1.2/x+1.2/6=1/2
1.2/x+0.2=0.5
1.2/x=0.3
x=1.2/0.3=4
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
x/x-2+x-9/x-7=x+1/x-1+x-8/x-6,
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
(x/x-2)+(2/x*2+2x)-(x+6/x*2-4)化简,=x^2/x(x-2)+(2x-4)/x(x^2-4)-(x^2+6x)/x(x^2-4)=x^2/x(x-2)-(x+2)/x(x-2)=(x-2)(x+1)/x(x-2)=(x+1)/x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
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(x+7)(x+6)-(x-2)(x+1)=?
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1/x-2 +3 =1-x/2-x 3/x + 6/x-1=x+5/x²-x
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分式方程.x/(x-2)+(x-9)/(x-7)=(x+1)/(x-1)+(x-8)/(x-6)