Question

PLEASE HELP !! (4/5) -50 POINTS-

Answer 1

First equation:

2 -7 6 | 7

Second: x + 3y - 4z = 5
1 3 -4 | 5

Third: x + 6y - 15z = -6
1 6 -15 | -6

Arranged augmented matrix:

2 -7 6 | 7
1 3 -4 | 5
1 6 -15 | -6

Answer 2

2 -7 6 7

1 3 -4 5

1 6 -15 -6

Explanation:

An augmented matrix is the coefficients of the variables and then the solution in rows

Rewriting the equations

2x -7y +6x = 7

x +3y -4z = 5

x +6y -15z = -6

The matrix is

2 -7 6 7

1 3 -4 5

1 6 -15 -6