Welcome :: Homework Help and Answers :: Mathskey.com
Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

13,435 questions

17,804 answers

1,438 comments

339,679 users

solve the following system of equations using matrices

0 votes
x-y+4z=6
2x+z=1
x+5y+z=-9
asked Mar 18, 2014 in ALGEBRA 2 by rockstar Apprentice

2 Answers

–1 vote

Given equations are x  - y  + 4z  = 6 ---> (1)

2 + = 1 ---> (2)

x + 5 + z  = 9 ---> (3)

Convert the equations (1), (2) & (3) are in matrix form AX  = B.

Where A  is coefficient matrix , is variable matrix and B  is constant matrix.

Now solve the equations in Cramer's method.

image

image

image

image

image

image

image

image

image

image

image

image

image

image

image

Solution

image

answered Mar 19, 2014 by david Expert

The solution of the system x-y+4z = 6, 2x+z = 1, and x+5y+z = -9 is x = 0, y = - 2, and z = 1.

0 votes

Given equations are x  - y  + 4z  = 6 ---> (1)

2 + = 1 ---> (2)

x + 5 + z  = - 9 ---> (3)

Convert the equations (1), (2) & (3) are in matrix form AX  = B.

Where A  is coefficient matrix , is variable matrix and B  is constant matrix.

Now solve the equations in Cramer's method.

image

image

image

image

image

image

image

image

image

image

image

image

image

image

image

Solution

image.

answered Mar 19, 2014 by david Expert

Related questions

...