数学题(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)在线等··············求过程···············
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![数学题(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)在线等··············求过程···············](/uploads/image/z/580535-71-5.jpg?t=%E6%95%B0%E5%AD%A6%E9%A2%98%EF%BC%8816x-13%29%2F%284x-3%29%2B%EF%BC%8840x-43%29%2F%288x-9%29%3D%EF%BC%8832x-30%29%2F%288x-7%29%2B%EF%BC%8820x-24%29%2F%284x-5%29%E5%9C%A8%E7%BA%BF%E7%AD%89%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%E6%B1%82%E8%BF%87%E7%A8%8B%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7)
数学题(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)在线等··············求过程···············
数学题(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)
在线等··············
求过程···············
数学题(16x-13)/(4x-3)+(40x-43)/(8x-9)=(32x-30)/(8x-7)+(20x-24)/(4x-5)在线等··············求过程···············
(4(4x-3)-1)/4x-3 + (5(8x-9)+2)/(8x-9) =(4(8x-7)-2)/(8x-7) +(5(4x-5)+1)/(4x-5)
整理得
2/(8x-9) - 1/4x-3 = 1/(4x-5) - 1/(8x-7)
两边分别通分得
1/(4x-5)(8x-7) = 1/(8x-9)(4x-3)
化简
(4x-5)(8x-7) = (8x-9)(4x-3)
化简
x=1
原式可化为 4 - 1/(4x-3)+ 5 + 2/(8x-9)=4 - 2/(8x-7)+ 5 + 1/(4x-5)
2/(8x-9)- 1/(4x-3)= 1/(4x-5) - 2/(8x-7)
3 /[(8x-9)*(4x-3) ] = 3/[(4x-5)*(...
全部展开
原式可化为 4 - 1/(4x-3)+ 5 + 2/(8x-9)=4 - 2/(8x-7)+ 5 + 1/(4x-5)
2/(8x-9)- 1/(4x-3)= 1/(4x-5) - 2/(8x-7)
3 /[(8x-9)*(4x-3) ] = 3/[(4x-5)*(8x-7)]
(8x-9)*(4x-3) = (4x-5)*(8x-7)
27- 60*x = 35 - 68*x
求得 x=1
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