kamdynj1 kamdynj1

01-03-2022
Mathematics

contestada

Solve the system of equations:
x-y=4
4x-7z=24
4y+z=8

Respuesta :

Medunno13 Medunno13

06-03-2022

Answer: x=6, y=2, z=0

Step-by-step explanation:

We know from the third equation that z=8-4y

and from the first that x=y+4

Substitute into the 2nd equation,

4(y+4)-7(8-4y)=24

4y+16-56+28y=24

32y-40=24

32y=64

y=2

Meaning x=6 and z=0.

Answer Link

Otras preguntas

Emma earns $6 each time she mows the lawn and $8 per hour for babysitting. She is saving up to buy a new pair of jeans that cost $48. If she mows the lawn x tim

Porter is studying the influenza pandemic of World War I. He is examining letters, journal entries, autobiographies, and newspaper articles from that time to se

Which conditions are required for natural selection? Check all that apply.

Find the value of this expression if x = -7 x squared - 1 over x + 4

In a shopping mall, shoppers who use a reward points card get a 10% discount on every transaction. If the average transaction is $450 for customers with these c

Which style of leadership is being used in the following situation? The president of Key Club at a high school calls a meeting so the club can come up with a

How old do you have to be to stop trick or treating?

A 17-year-old unmarried, pregnant client with drug addiction is a high school dropout, homeless, and has a history of past abuse arrives at the clinic for her f

If one parent has type b blood and the other has type ab, what type might the child have?

WILL GIVE A BRAINLEST Which statement describes the amount of rainfall in grasslands? less than deserts, more than tundras more than deserts, more than forests