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PIDIO

Bonjour !

1-

[tex]8x + 5 = 2 \\ 8x = - 3 \\ x = \frac{ - 3}{8} [/tex]

2 -

[tex] - 9x = x + 1 \\ - 10x = 1 \\ x = \frac{1}{ - 10} = - 0.1[/tex]

3 -

[tex]2x = 5x + 4 \\ - 3x = 4 \\ x = \frac{ - 4}{ 3} [/tex]

Bonne journée

INEQUATION

Bonjour,

Résoudre:

  • 8x+5=2

8x= 2-5

x= -3/8

S= { -3/8 }

  • -9x=x+1

-9x-x= 1

x= -1/10

S= { -1/10 }

  • 2x= 5x+4

2x-5x= 4

x= -4/3

S= { -4/3 }

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