Ecuaciones fraccionarias

1 4 − 4 x − 1 10 + 1 − 1 4 = 0 .

12. ${\displaystyle \frac{x-1}{5}}-{\displaystyle \frac{43-5x}{6}}-{\displaystyle \frac{3x-1}{8}}=0$.

13. ${\displaystyle \frac{1}{x+7}}={\displaystyle \frac{2}{x+1}}-{\displaystyle \frac{1}{x+3}}$.

14. ${\displaystyle \frac{1}{x+4}}+{\displaystyle \frac{2}{x+6}}-{\displaystyle \frac{3}{x+5}}=0$.

15. ${\displaystyle \frac{4}{x^2-1}}+{\displaystyle \frac{1}{x-1}}+{\displaystyle \frac{1}{x+1}}=0$.

16. ${\displaystyle \frac{3x+1}{4}}-{\displaystyle \frac{5x-4}{7}}=12-2x-{\displaystyle \frac{x-2}{3}}$.

17. $\frac{1}{8}(5x+3)-\frac{1}{3}(3-4x)+\frac{1}{6}(9-5x)=\frac{1}{2}(31-x)$.

18. $\frac{1}{15}(34x-56)-\frac{1}{5}(7x-3)-\frac{1}{3}(7x-5)=0$.

Ejercicio 52.

Resuelve: