Question

ayudennnnn porfavorr gente seria pls

Answer 1

Respuesta:

$4. \frac{x}{2x-5} => x=5/2$

$5. \frac{8}{x^{2}-49 } => x= 7\\7. \frac{3x(x-4)-5(x-4)}{x^{2}-x-12 } = \frac{3x-5}{x+3} \\8. \frac{2x+10-3x(x+5)}{x^{2}+9x+20 } = \frac{2-3x}{x+4}$