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egoroff_w [7]
3 years ago
15

What’s The elimination 7x+4y=-4 5x+8y=28

Mathematics
1 answer:
erica [24]3 years ago
6 0

Answer:

7x + 4y = -4

5x + 8y = 28

II - 2*I

- 9·x = 36 --> x = -4

7*(-4) + 4y = -4 --> y = 6

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