AIDER MOI SVP JE COMPREND PAS !!! ÉQUATION NIVEAU 4 EME : A:3x=4 B:2/5x=6 C:1/3x=-4 :-3/7x=2

a)
3x = 4
x = 4/3

b)
2/5x = 6
x = 6 * 5/2
x = 30/2
x = 15

c)
1/3x = 4
x = 4 * 3
x = 12

d)
- 3/7x = 2
x = - 2 * 7/3
x = - 14/3

A.x=4/3

B.x=6/2/5

C.x=-4/1/3

D.x=3/7/2
calcule apres ☺