mae9110 mae9110

01-03-2021
Mathematics

contestada

3x+y=-9
Y=5x+7
Solve the system of linear equations by substitution

Respuesta :

hookkick6969 hookkick6969

02-03-2021

Answer:

x=-2

Step-by-step explanation:

Substitute y=5x+7 into the equation 3x+y=-9

So you will have, 3x+5x+7=-9

3x+5x=8x

8x+7=-9

8x+7-7=-9-7

8x=-16

x=-2

Answer Link

Otras preguntas

Why did the colonists protest the Sugar Act and currency act as forms of taxation without representation

What is the inverse of the function? f(x)=3^x−1

It takes 8 minutes for 3 cars to move through a car wash. At the same rate, how many cars can move through the car wash in 24 minutes?

Why is large-scale nuclear fission a rare phenomenon on Earth? A. There isn't enough energy to start a chain reaction in nature. B. There are no naturally occur

Harry and Hagrid needed to get money out of Gringotts bank. The bank cart was accelerating at a rate of 4 m/s2 and it had a mass of 8,000 kg. What is the net f

a volcanic bomb is a____.

which equation can be used to find the volume of this solid?

Our school is considering requiring uniforms for next year. I think that uniforms are a good idea because they promote equality. If everyone wears the same clot

What does religion mean to you? How does it effect your life?

What is the classification for this polynomial 3