Question

数学题（16x-13)/(4x-3)+（40x-43)/(8x-9)=（32x-30)/(8x-7)+（20x-24)/

Answer 1

(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