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djyliett [7]
3 years ago
15

4x + 2y = 9 5y - 4x = 5

Mathematics
1 answer:
mars1129 [50]3 years ago
4 0

we sum the both rows with 1×

4×+2y+5y-4x=9+5

7y=14

y=14/7

y=2

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