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bonjour

2 x - 6 = 0

2 x = 6

x = 6/2  = 3

4 - 2 x = 0

- 2 x = - 4

x = 2

8 - x = 0

- x = - 8

x = 8

3 x - 51  = 0

3 x = 51

x = 17

x /2 + 6 = 0

0.5 x = - 6

x = -  12

6 x + 12 = 0

6 x = - 12

x = - 2

- 3 x + 21 = 0

- 3 x = - 21

x = 7

- 4 x + 5 = 0

- 4 x = - 5

x = 5 /4

Bonjour,

2x =6

x= 6/2 = 3

8=x

x= 8

x/2 = -6

x =-6*2 = -12

21 = 3x

x= 21/3 = 7

4=2x

x= 4/2 = 2

3x= 51

x= 51/3 = 17

6x= -12

x= -12/6= -2

5 = 4x

x= 5/4 = 1,25

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