Sagot :
Réponse :
Explications étape par étape
Bonsoir
5y - 10 = 3y+4
5y - 3y = 4 + 10
2y = 14
y = 14/2
y = 7
4h+19 = -2h-17
4h + 2h = -17 - 19
6h = -36
h = -36/6
h = -6
-15b + 47 = 5b-17
47 + 17 = 5b + 15b
64 = 20b
b = 64/20
b = 3,2
5j + 30 = 2j-6
5j - 2j = -30 - 6
3j = -36
j = -36/3
j = -12
-5k - 4 = 3k - 8
-4 + 8 = 3k + 5k
4 = 8k
k = 4/8
k = 1/2
k = 0,5