vargasemily43 vargasemily43

07-04-2021
Mathematics

contestada

Solve for z.

x + y + z = 4

4x - y - z = 1

x + z = 2

Respuesta :

sonnelsedky5639 sonnelsedky5639

07-04-2021

Answer:

z= 4-x-y

z= -1+4x-y

z= 2-x

Answer Link

07-04-2021

Step-by-step explanation:

z = 2-x

y = -1-z +4x

substitute

x -1 -2+x +4x + 2 -x = 4

-1 + 5x = 4

5x = 5

x = 1

z = 1

1+y+1 = 4

y = 2

Answer Link

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