lizstouffer lizstouffer

03-12-2019
Mathematics

contestada

x+y-5z=24,y+z=1,z=-4

Respuesta :

PollyP52 PollyP52

03-12-2019

Answer:

x=39, y = 5 and z = -4.

Step-by-step explanation:

x + y - 5z = 24

y + z = 1

z = -4

Plug z = -4 into the second equation:

y + -4 = 1

y = 5.

Now plug x = -4 and y = 5 into the first equation:

x + 5 - 5*4 = 24

x = 24 - 5 + 20

x = 39.

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