Réponse :
bonjour
a) bonbons = p
soda = p - 2
b ) chocolat = p /4
c) 3 ( p - 2) + p/4 + 2 p
= 3 p - 6 + p/4 + 2 p
= 12 p /4 - 24/4 + p /4 + 8 p/4
= (21 p - 24) /4
2 x + 9
= 6 + 9 = 15
48 - 3 x + y²
= 48 - 9 + 25
= 64
0.4 ( 8 - x )
= 0.4 ( 8 - 3)
= 0.4 * 5 = 2
8 (w + 6 w ) = 8 * 7 w = 56 w
10y + 8 z
15 a + 8 a = 23 a
Explications étape par étape :