Merci j’y comprend rien

Bonsoir :)

2x + 1 = 8x - 2

2x - 8x = -2 - 1

-6x = -3

[tex]x = \frac{3}{6} = \frac{1}{2}[/tex]

8 - 2x = 4x + 2

8 - 2 = 4x + 2x

6 = 6x

[tex]x = \frac{6}{6} = 1[/tex]

2(4x + 1) = 3(x + 0)

8x + 2 = 3x + 0

8x - 3x = 0 - 2

5x = -2

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

5(2x - 1) = 10x - 1

10x - 5 = 10x - 1

10x - 10x = -1 + 5

0x = 4 => IMPOSSIBLE car {0x}