vargasemily43 vargasemily43
  • 07-04-2021
  • Mathematics
contestada

Solve for z.

x + y + z = 4

4x - y - z = 1

x + z = 2

Respuesta :

sonnelsedky5639
sonnelsedky5639 sonnelsedky5639
  • 07-04-2021

Answer:

z= 4-x-y

z= -1+4x-y

z= 2-x

Answer Link
Jsf09
Jsf09 Jsf09
  • 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

Otras preguntas

The contemporary novel The Hunger Games features a lottery where children are selected to fight to the death in combat. The section of “Cruel Tribute” that bes
What is speed in science?
Based on the following excerpt, in what way does the fur piece serve as a contextual symbol for Miss Brill in Katherine Mansfield’s short story “Miss Brill”?
Is 3.4 a whole number
Which of the following is a high impact activity? walking sprinting swimming sit-ups
Which of the following describes a chemical change? a. ethanol boils when heated. b. ethanol has a high heat capacity. c. ethanol can be produced by the ferm
Write 193% as a fraction and decimal
Which of the following jobs is referred to as a trade? social work administration carpentry graphic design
I am full of holes but still holds water. What am I?
Three x plus two years equals eight
good job