greatday5 greatday5
  • 04-02-2021
  • Mathematics
contestada

-x+y+z=1, x-y+z=2, x+y-z=1

Respuesta :

abidemiokin
abidemiokin abidemiokin
  • 09-02-2021

Answer:

(3/2, 1, 3/2)

Step-by-step explanation:

Given the simultaneous equation

-x+y+z=1... 1

x-y+z=2 ... 2

x+y-z=1 .... 3

Add equation 1 and 2;

-x+x + y - y + z + z = 1+2

0 + 0 + 2z = 3

2z = 3

z = 3/2

Add equation 2 and 3

x+x = 2 + 1

2x = 3

x = 3/2

Substitute x = 3/2 and z = 3/2 into 3

From 3;

x+y-z = 1

3/2 + y - 3/2 = 1

y + 0 = 1

y = 1

Hence the solution (x, y, z) is (3/2, 1, 3/2)

Answer Link

Otras preguntas

Simplify the expression: 4 + 4f2 + 6f - 6f
Installation of certain hardware takes a random amount of time. The installation times form a normally distributed distribution with a standard deviation 5 minu
please help, will give brainliest for correct answer
With her new company, Annika has a two-year assignment living in a large city. The company will reimburse most of her expenses. Annika is using the Quantitative
Directions: Rewrite each sentence and capitalize each proper noun. 1. The new student in our class is travis. 2. The white sox is a baseball team from chicago.
Find the measure of the missing angles. 133° b = C=
Help me please,,,………………….
what led to ancient china's isolation
the eye is___ to light A. sensitive B. sense C. sensible D. senseless
Write a recursive function stringReverse that takes a string and a starting subscript as arguments, prints the string backward and returns nothing. The function