jenalatorres jenalatorres

04-01-2020
Mathematics

contestada

x+6/x+2=x+3/x-5

a. x=1
b. x=5
c. x=-9
d. x=-8

Respuesta :

WojtekR WojtekR

04-01-2020

[tex]\dfrac{x+6}{x+2}=\dfrac{x+3}{x-5}\qquad\qquad\text{cross multiply}\\\\(x+6)(x-5)=(x+2)(x+3)\\\\x^2-5x+6x-30=x^2+3x+2x+6\\\\x^2+x-30=x^2+5x+6\\\\x^2+x-x^2-5x=6+30\\\\-4x=36\quad|:(-4)\\\\\boxed{x=-9}[/tex]

Answer C.

Answer Link

Otras preguntas

what is 1/7 divided by 7

Which statement describes a goal of the Populists in the late 1800s? A. They pushed for lower tariffs on imported agricultural products. B. They campaigned for

6/11 y =_18/22 solve simplest form

5 letter word foramount of work done per second

What type of balance does a Rose Window have?

The legs of an isosceles right triangle are 5 inches long. What is the length of the hypotenuse of the triangle to the nearest inch?

write 7340 in standard for

on what continents would you expect to see evidence of a glacier

Which of the following structures forms a protective layer between the environment and the inside of a body? a.blood vessel b.muscle c.skin d.bone

what biome do we live in? Explain your answer.