Aider moi svp merci cordialement bonne soirée

Bonsoir,

START

3x + 4x = 7x

2x + x + 3 = 3x + 3

4y + y + y = 6y

2x + 2x = 4x

x + 3 + 3x = 4x + 3

y + y + y = 3y

2y + 2 + 5 = 2y + 7

y + 4 + 2y = 3y + 4

3a + a + 4a = 8a

5 + 2 + y = y + 7

4x + 1 + x = 5x + 1

2 + x + x = 2x + 2

3x + 2x + 5x = 10x

FINISH

Bonne soirée !