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Mathematics
Sariah
21 September, 21:00
What's The elimination 7x+4y=-4 5x+8y=28
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Valerie Joseph
21 September, 23:06
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7x + 4y = - 4
5x + 8y = 28
II - 2*I
- 9·x = 36 - -> x = - 4
7 * (-4) + 4y = - 4 - -> y = 6
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