Bonsoir qui pourrait m’aider pour résoudre ces calcule : • 3x + 1 =2x -4 • 5x + 2 = -9x +3 • 3(x -1) + 2x = -4x +5 • 5(x +7)-2 = 3(x-1) +4

bonsoir

3 x + 1 = 2 x - 4

3 x - 2 x = - 4 - 1

x = - 5

5 x + 2 = - 9 x + 3

5 x + 9 x = 3 - 2

14 x = 1

x = 1/14

3 x - 3 + 2 x = - 4 x + 5

5 x - 3 = - 4 x + 5

5 x + 4 x = 5 + 3

9 x = 8

x = 8/9

5 x + 35 - 2 = 3 x - 3 + 4

5 x + 33 = 3 x + 1

5 x - 3 x = 1 - 33

2 x = - 32

x = - 16