J'ai eu la varicelle pendant 2 semaine et pour lundi j'ai a un dm j'ai rien comprit aider moi svp !!!7 a = -7x5+18:3-10 b = (15-6):(3-10) c = 39-36:8 d = 13-6x3

a = -7x5+18:3-10 = - 35 + 6 - 10 = -45 +6 = - 39

b = (15-6):(3-10) = 9 : -7 = -1,285714286

c = 39-36:8= 39 - 4.5 = 34,5

d = 13-6x3+15:5 = 13 - 18 + 3 = -18 +16 = -2

e = 25x(-8+6x5) = 25 x ( - 8 + 30) = 25 x 22 = 550

f = -49:14-6x2+3 = - 3,5 - 12 +3 = - 15.5 + 3 = - 12.5

a = - 7 x 5 + 18 : 3 - 10
a = - 35 + 6 - 10
a = - 45 + 6
a = - 39

b = (15 - 6) : (3 - 10)
b = (9) : (- 7)
b ≈ - 1 29

c = 39 - 36 : 8
c = 39 - 4,5
c = 34,5

d = 13 - 6 x 3 + 15 : 5
d = 13 - 18 + 3
d = 16 - 18
c = - 2

e = 25 x (- 8 + 6 x 5)
e = 25 x (-8 + 30)
e = 25 x 22
e = 550

f = - 49 : 14 - 6 x 2 + 3
f = - 3,5 - 12 + 3
f = - 15,5 + 3
f = - 12,5