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Sagot :

TEAMCE

Réponse:

Bonjour,

1)

3x+4 = 2x+8

3x = 2x+4

x = 4

2)

2x+3 = 3x-5

2x+8 = 3x

8 = x

3)

5x-1 = 2x+4

5x = 2x+5

3x = 5

x = 5/3

4)

3x+1 = 7x+5

3x-4 = 7x

-4 = 4x

x= -1

5)

5x + 8 = 0

5x =-8

x = -8/5

Bonne journée.

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