Website Statistics résous les équations suivantes A 4x72x16 Bx2105xC3x87x4D2t55t12E7x66x3 F7x5 3x2 g 15x87x24x10

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4 x + 7 = 2 x + 16

4 x -2 x = 16 - 7

2 x = 9

x = 9/2

x - 2 = 10 - 5 x

x + 5 x = 10 + 2

6 x = 12

x = 2

- 3 x - 8 = - 7 x - 4

- 3 x + 7 x = - 4 + 8

4 x = 4

x = 1

2 t + 5 = - 5 t + 12

2 t + 5 t = 12 - 5

7 t = 7

t = 1

7 x - 5 = 3 x + 2

7 x - 3 x = 2 + 5

4 x = 7

x = 7/4

15 x + 8 - 7 x = 2 - 4 x + 10

15 x - 7 x + 4 x =  2 + 10 - 8

12 x  = 4

x = 4/12 = 1 /3

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