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

What enables U.S. citizens to consume a disproportionately large amount of products compared to the rest of the world? A. large oil reserves OB. high per capita

the wavelength of light is 4000A then the number of waves in 1 mm is

A grinding wheel with a mass of 10.50 kg and a radius of 0.55 m is initially at rest. What angular momentum will the wheel have 9.50 s after a 7.50 NÂ·m torque

.3 3. True or False? For any integer m, 2m(3m + 2) is divisible by 4. Explain to get credit.

diffrence between vertebrates and invertebrates

Dr. Oops was working in his laboratory and mixed up his 3 containers of dangerous chemicals. He knows that one was a stronger base than the other. He measures

Write a program that asks the user to input four numbers (one at a time). After the four numbers have been supplied, it should then calculate the average of the

A battery charger can produce 3A at 12 Volt and charges a battery fer 2 hr. Calculate work in KJ.

QUESTION 28 What plan proposed a bicameral legislature with two senators per state and a House of Representatives based on population? New Jersey Plan Connectic

Mercury is 0.39 AU from the sun. What is its distance from the sun in kilometers?