Sagot :

Sylvia38

Réponse :

Bonsoir

Explications étape par étape

X/4 = x/3 - 1/2

X/4 - x/3 = - 1/2

3x/12 - 4x/12 = -1/2

-x/12 = - 1/2

-x*2 = -1*12

-2x = -12

X = 12/2

X = 6

7x/6 - 2/3 = 5x/2

7x/6 - 5x/2 = 2/3

7x/6 - 15x/6 = 2/3

-8x/6 = 2/3

-4x/3 = 2/3

-4x*3 = 2*3

-12x = 6

X = -6/12

X = -1/2