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Sagot :

AYUDA

2x + 3 = 0

2x + 3 - 3 = 0 - 3

2x = -3

2x / 2 = -3/2

x = -1,5

et

4x - 5 = -2x + 11

soit

4x - 5 + 5 = -2x + 11 + 5

4x = -2x + 16

4x + 2x = -2x + 2x + 16

6x = 16

6x/6 = 16/6

x = 8/3

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