Question

x + 2y = 7
2x + 5y = 17

3x-2y=13
x+3y=19

x+3y=14
2x+y=13

x-3y=4
2x+y=22

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Answer 1

Respuesta:

1. (x , y) =(1 , 3)

2. (x , y) = (7 , 4)

3. (x , y) =(5 , 3)

4. (x , y) =(10 , 2)