bonjour
3 x - y = - 2
9 x - 2 y = - 1
- 6 x + 2 y = 4
3 x = 3
x = 1
3 *1 - y = - 2
- y = - 2 - 3
- y = - 5
y = 5
S ( 1 ; 5 )
3 x - 2 y = 0
5 x - 3 y = 1
9 x - 6 y = 3
- 10 x + 6 y = - 2
- x = 1
x = - 1
5 ( - 1 ) - 3 y = 1
- 3 y = 1 + 5 = 6
y = - 2
S ( - 1 ; - 2 )
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bonjour
3 x - y = - 2
9 x - 2 y = - 1
- 6 x + 2 y = 4
9 x - 2 y = - 1
3 x = 3
x = 1
3 *1 - y = - 2
- y = - 2 - 3
- y = - 5
y = 5
S ( 1 ; 5 )
3 x - 2 y = 0
5 x - 3 y = 1
9 x - 6 y = 3
- 10 x + 6 y = - 2
- x = 1
x = - 1
5 ( - 1 ) - 3 y = 1
- 3 y = 1 + 5 = 6
y = - 2
S ( - 1 ; - 2 )