Bonjour, j’ai des équations a faire mais je ne comprend pas. a) x + 17 = 70 b) 4x = 240 c) 11 + x = -3 d) 6x = -120 e) 4x + 13 = 37 f) 17x - 5x = 120 g) 7x + 9

a) x+17=70

x=70-17

x=53

b) 4x=240

x=240sur4

x=24

c) 11+x= -3

x= -3-11

x= -14

d) 6x= -120

x= -120sur 6

x= -20

e) 4x+13=37

4x=37-13

4x=24

x=24sur4

x=6

f) 17x-5x=120

12x=120

x=120sur12

x=10

g)7x+9=3x+35

7x-3x=35-9

4x=26

x=26sur4

x= 13sur 2

h) 7-8x=55

-8x=55-7

-8x=48

x=48sur-8

x= -6

Bonsoir

a) x + 17 = 70

x = 70 - 17

x = 53

b) 4x = 240

x = 240/4

x = 60

c) 11 + x = -3

x = - 3 - 11

x = - 14

d) 6x = -120

x = - 120/6

x = - 20

e) 4x + 13 = 37

4x = 37 - 13

4x = 24

x = 24/4

x = 6

f) 17x - 5x = 120

12x = 120

x = 120/12

x = 10

g) 7x + 9 = 3x + 35

7x - 3x = 35 - 9

4x = 26

x = 26/4

x = 13/2

h) 7 - 8x = 55

- 8x = 55 - 7

- 8x = 48

x = - 48/8

x = - 6.