pouvez vous m’aider pour ces equations svp merci bcp​

Bonjour

résoudre ces équations :

4x = 3/5

x = 3/(5 * 4)
x = 3/20

2x/3 = 7

x = 7 * 3/2

x = 21/2

6x/5 = -7/11

x = -7/11 * 5/6

x = -35/66

-7x = 4/-3

x = -4/(3 * 7)

x = -4/21

-3x/2 = 5

x = 5 * (-2/3)

x = -10/3

-5x/7 = -2/-3

x = 2/3 * (-7/5)

x = -14/15