Répondre :
Bonjour,
16 - 12g / 12 = 2 x 25 - ( 86 - 3 )
16 - g = 50 - 83
16 + 83 -50 = g
99 - 50 = g
49 = g
Réponse :
g = 49
Explications :
16 - 12g / 12 = 2 x 25 -(86 - 3)
<=> 16 - 1g = 50 - 83
<=> 16 - g = - 33
<=> - g = - 33 - 16
<=> -g = -49
<=> g = 49