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Sagot :

MAUDMARINE

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5x + 2y = 4

2x + 3y = - 5

- 15x - 6y = - 12

4x + 6y = - 10

- 11x = - 22

x = 22/11

x = 2

5x + 2y = 4

5 * 2 + 2y = 4

10 + 2y = 4

2y = 4 - 10

2y = - 6

y = - 6/2

y = - 3

S = (- 3 ; 2).

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