Solve the system using the elimination method.
1 answer:
Answer:
Step-by-step explanation:
3x + 2y - z = 8
-3x + 4y + 5z = -14
6y + 4z = -6
3x + 2y - z = 8
-3x + 9y - 12z = 42
11y - 13z = 50
6y + 4z = -6
66y - 78z = 300
-66y - 44z = 66
-122z = 366
z = -3
3x + 2y + 3 = 8
3x + 2y = 5
-3x + 4y -15 = -14
-3x + 4y = 1
3x + 2y = 5
-3x + 4y = 1
6y = 6
y = 1
3x + 2 + 3 = 8
3x + 5 = 8
3x = 3
x = 1
x=1, y = 1, z = -3
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