Bonjour pouvez vous m’aidez SVP c’est du niveau 5ème Pour les 3 exercice À RENDRE AVANT DEMAIN SVP !!!!!! Merci à celui où celle qui m’aidera :)

Bonjour,

30)

a y = 3

A = 7 * y

A = 7 * 3

A = 21

B = 4 * y + 3

B = 4 * 3 + 3

B = 12 + 3

B = 15

b. y = 4,5

A = 7 * y

A = 7 * 4,5

A = 31,5

B = 4 * y + 3

B = 4 * 4,5 + 3

B = 18 + 3

B = 21

c. y = 1

A = 7 * y

A = 7 * 1

A = 7

B = 4 * y + 3

B = 4 * 1 + 3

B = 4 + 3

B = 7

d. y = 0

A = 7 * y

A = 7 * 0

A = 0

B = 4 * y + 3

B = 4 * 0 + 3

B = 3

31)

a. x = 5

C = 3 * (x + 2)

C = 3 * (5 + 2)

C = 3 * 7

C = 21

D = 2 + 5 * x

D = 2 + 5 * 5

D = 2 + 25

D = 27

b. x = 1,5

C = 3 * (x + 2)

C = 3 * (1,5 + 2)

C = 3 * 3,5

C = 10,5

D = 2 + 5 * x

D = 2 + 5 * 1,5

D = 2 + 7,5

D = 9,5

c. x = 8

C = 3 * (x + 2)

C = 3 * (8 + 2)

C = 3 * 10

C = 30

D = 2 + 5 * x

D = 2 + 5 * 8

D = 2 + 40

D = 42

d. x = 0

C = 3 * (x + 2)

C = 3 * (0 + 2)

C = 3 * 2

C = 6

D = 2 + 5 * x

D = 2 + 5 * 0

D = 2

32)

a. x = 3

E = 5 * x

E = 5 * 3

E = 15

F = 2 * (4 + 5 * x)

F = 2 * (4 + 5 * 3)

F = 2 * (4 + 15)

F = 2 * 19

F = 38

G = 2 + 3 * x

G = 2 + 3 * 3

G = 2 + 9

G = 11

b. x = 10

E = 5 * x

E = 5 * 10

E = 50

F = 2 * (4 + 5 * x)

F = 2 * (4 + 5 * 10)

F = 2 * (4 + 50)

F = 2 * 54

F = 108

G = 2 + 3 * x

G = 2 + 3 * 10

G = 2 + 30

G = 32

c. x = 0,1

E = 5 * x

E = 5 * 0,1

E = 0,5

F = 2 * (4 + 5 * x)

F = 2 * (4 + 5 * 0,1)

F = 2 * (4 + 0,5)

F = 2 * 4,5

F = 9

G = 2 + 3 * x

G = 2 + 3 * 0,1

G = 2 + 0,3

G = 2,3.