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Directions: Grab paper and pencil. Solve these 3 x 3 system problems algebraically, using either the substitution method or the elimination (addition/subtraction) method.
1. |
Solve this 3 x 3 linear system.
3x = -6
3y = -x - 17
25 - 6z = 4x - 3y
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2. |
Solve this 3 x 3 linear system.
x + y + z = 3
x + 2y - z = 4
2x + y + z = 5
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3. |
Solve this 3 x 3 linear system.
x + y - z = 7
4x + 2y - 3z = 21
5x - 4y - 2z = 2
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4. |
Solve this 3 x 3 linear system:
x + y - z = 4
3x - y + 4z = -5
6x - y + 3z = -9
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5. |
Solve this 3 x 3 linear system.
3x - 3y + 3z = -3
4x + y - 2z = 5
-3x - 3y - 4z = -16
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