Réponses

2014-05-31T10:59:19+02:00
X = a
y = 5

8x+3y = -3
8a+3*5 = -3
8a+15 = -3
8a+15-15 = -3-15
8a = -18
a = -18/8
a = -9/4
  • Utilisateur Brainly
2014-05-31T10:59:32+02:00
8x+3y=-3 avev a=x et 5=y

8x+3*5=-3
8x+15=-3
8x=-3-15
8x=-18
x=-18/8=-2.25