Xanderr Xanderr

02-10-2020
Mathematics

contestada

Plz help me.
Solve the system of linear equations by substitution
X+y=-7
-5x+y=5

Respuesta :

jennyzhang096 jennyzhang096

05-10-2020

Answer:

x= -2 y= -5

Step-by-step explanation:

X+y=-7

x+-y-7

-5(-y-7)+y=5

5y+35+y=5

6y+35=5

6y=5-s5

6y=-30

y=-5

-5x+(-5)=5

-5x=5+5

-5x=10

x=-2

Answer Link

Otras preguntas

Who divides states into congressional districts?

i need help please :(

As John Locke argued, an agreement among the people to form a government and abide by its rules is a type of a. self government. b. declaration of autonomy. c.

When testing water for chemical impurities, results are often reported as bdl, that is, below detection limit. The following are the measurements of the amount

3x2 -8y? if x = 2 and y = -3

I am tall when I am young, I am short when I am old. What am I.

Help!!!!!!!......!.!.!.!.!.!.!.!.

he Han Dynasty of China contributed which invention to society that is still used today? A) paper B) stirrups C) steel plow D) typewriter

What is one of the responsibilities of Health care regulatory agencies?

Aimee buys a plant that is 22 7/8 inches tall. After a month, the plant has grown 4 2/3. What is the height of the plant after the first month