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

How do you know when to use L'hospital's rule?

Write equation in function form 2x+2y=8 and 6x-3y=12

what is this number in word form 3,152,308,726

How do I solve c/4d divided by 3/8d

how do you solve m/9 divided by mn squared / 3

2h/3-1/4=1/3 solve and show your steps

Rectangular classroom seats 72 students. If the seats were rearragned with 3 more seats rows in each row, the classroom would have 2 fewer rows. Find the origin

kilo- - 1,000deka- - 10How much larger is a kilo- than a deka-?

Write an addition equation with a positive addend and a negative addend and a resulting sum of -8

8. A pattern of being late for work or for appointments is usuallyA. a habit learned early, which is nearly impossible to break.B. directly related to one's per