NOUNOURSDU76
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Bonjour,j'ai besoin d'aide svp

5x - ( 2x - 11) = 3(5-2x)-(2x+15)​

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LOULAKAR

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5x - ( 2x - 11) = 3(5-2x)-(2x+15)​

5x - 2x + 11 = 15 - 6x - 2x - 15

3x + 11 = -8x
8x + 3x = -11

11x = -11

x = -11/11

x = -1