Đáp án:
$\text{ $\dfrac{3x+5}{16}$ - $\dfrac{3x-5}{26}$ = $\dfrac{3x-8}{29}$ - $\dfrac{3x+8}{13}$ }$
$\text{<=> $\dfrac{377(3x+5)}{6032}$ - $\dfrac{232(3x-5)}{6032}$ = $\dfrac{208(3x-8)}{6032}$ - $\dfrac{464(3x+8)}{6032}$}$
$\text{<=> 377(3x+5) - 232(3x-5) = 208(3x-8) - 464(3x+8)}$
$\text{<=>1131x + 1885 - 696x + 1160 = 624x - 1664 - 1392x -3712}$
$\text{<=>1131x - 696x +1392x - 624x = -1664 - 3712 -1885 - 1160 }$
$\text{<=>1203x= -8421 }$
$\text{<=>x = -8421 : 1203}$
$\text{<=>x = -7 }$
$\text{Vậy phương trình có tập nghiệm S={-7} }$
