MATH 1414

1. Write the augmented matrix for the system of equations to the right. 3x _ y + 82
5x – 9y
3x – 82 = – 1
Enter each element.
3 ~ 1 8 ~ 3
5 – 9 0 7
3 0 – 8 – 8
(Do not simplify.)
2. Write the system of linear equations represented by the augmented 1 _ 4 5 3
matrix to the right. Use w, x, y, and 2 for the variables. 0 1 3 0
0 O 1 -~ 1
1 – 4 0 0
Write the equation represented by the first row.
w-4x+5y+3z==12

Write the equation represented by the second row.

x + 3y = 10

Write the equation represented by the third row.

y-z=3

Write the equation represented by the fourth row.

W – 4x = – 3

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