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SIMBA80
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Résoudre les équations suivantes :
1) 4x + 7 = -1
2) -5x - 3 = 2
3) 2 - 3x = -7
4) 3x - 4 = x + 2
5) x + 4 = - 4 - 3x
6) 7x-6 = 4 - 3x


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MAUDMARINE

Bonsoir

Résoudre les équations suivantes :

1) 4x + 7 = -1

4x = - 1 - 7

4x = - 8

x = - 8/4

x = - 2

2) -5x - 3 = 2

- 5x = 2 + 3

- 5x = 5

x = - 5/5

x = - 1

3) 2 - 3x = -7

3x = - 7 - 2

3x = - 9

x = - 9/3

x = - 3

4) 3x - 4 = x + 2

3x - x = 2 + 4

2x = 6

x = 6/2

x = 3

5) x + 4 = - 4 - 3x

x + 3x = - 4 - 4

4x = - 8

x = - 8/4

x = - 2

6) 7x-6 = 4 - 3x

7x + 3x = 4 + 6

10x = 10

x = 10/10

x = 1.

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