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Anna11 [10]
3 years ago
10

6x-5y-z=7 i have to eliminate xthe full question is 2x+y-3z=52x+3y+z=136x-5y-z=7

Mathematics
1 answer:
nikklg [1K]3 years ago
3 0

Answer: 2y - 20z = -16

Step-by-step explanation:

6(2x+y-3z) = 5(6)

=> 12x + 6y- 18z = 30

3(2x + 3y + z) = 13(3)

=> 6x + 9y + 3z = 39

Now minus the top equation from the bottom two:

12x + 6y - 18z = 30

6x + 9y + 3z = 39

6x - 5y - z = 7

12x + 6y - 18z = 30

12x + 4y + 2z = 46

Minus top from bottom:

2y - 20z = -16

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