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Sonbull [250]
2 years ago
7

Will mark brainliest and 15 points

Mathematics
1 answer:
defon2 years ago
7 0

Step-by-step explanation:

x + y = 9. => 2x + 2y = 18.

2x + 2y = 18

- (2x - 3y = -12)

=> 5y = 30, y = 6.

Therefore x + (6) = 9, x = 3.

The solution is x = 3 and y = 6.

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step three

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