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ddd [48]
2 years ago
7

1

Mathematics
1 answer:
Artemon [7]2 years ago
3 0

Answer:

x = 4

Step-by-step explanation:

2x − y = 11      ⇒    -y = - 2x +11     ⇒      y = 2x - 11

x + 3y = -5

x + 3(2x - 11) = -5

x + 6x - 33 = -5

      +33       +33  

7x = 28

÷7     ÷7

x = 4

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