(X-12) x 1/3 = 10 Qui peut svp me donner les details pour le resultat

x-12 = 3*10

x - 12 = 30

x = 30+12

x = 42

Bonjour

(X-12) x 1/3 = 10

1/3x -12/3 = 10

1/3x -4 = 10

1/3x = 10 +4

1/3x = 14

X = 14* 3

X = 42