pouvez vous m'aider a resoudre des equation x+3=-4 4x=10 5x+3=38 merci d'avance

Hello,

x + 3 = -4

x = - 4 - 3

x = -7

4x = 10

x = 10/4 = 5/2

5x + 3 = 38

5x = 38 - 3

5x = 35

x = 35/5 = 7