cheemasukh30 cheemasukh30
  • 22-07-2021
  • Mathematics
contestada

Solve the system.
x-y =-1
x+z=-5
y-z=2​

Respuesta :

theresa256
theresa256 theresa256
  • 30-07-2021

Answer:

x= -2

y= -1

z= -3

Step-by-step explanation:

x-y= -1 (1)

x+z= -5 (2)

y-z= 2 (3)

(1)+(3)==> x-z= 1 (4)

(4)+(2)==> 2x= -4 ==> x= -2

we replace x by its value in equation (2):

-2+z= -5 ==> z= -3

we replace z by its value in equation (3):

y-(-3)= 2 ==> y+3=2 ==> y= -1

Answer Link

Otras preguntas

What is the maximum number of electrons that can occupy the d sublevel?
how did the geography, religion, and government affect how people in the English colonies lived?
Murillo's popularity among the people of Spain was mainly due to his
Write the equation of the line in standard form that passes through the points (3, 2) and (5, 8). a. y=7x 3 b. -3x y= c. 3x y=-7 d. -3x y=-7
3 to the second power 4.6x(-0.1)
What types of force do collagen and bone mineral resist?
Original price $325.50 ; mark down: 15%
The first reconstruction act divided the south into how many military districts?threefourfivesix
Betsy has 10 more dimes than quarters if she has 3.45 how many coins does she have
Which of these is the easiest mineral identification property to use when you want to know whether you have pyrite or actual gold? a. heft b. luster c. strea