Bonjour,

1)

3x= 23 +25

3x  =48

x  48/3 = 16

-> P

2)

5x -3x = 20+4

2x = 24

x= 24/2

x = 12

-> L

3)

3x-2x = -5+6

x = 1

- > A

4)

x = 7*2

x= 14

-> N

5)

1+14 = 4x-x

15 = 3x

x = 15/3

x= 5

-> E

6)

7x-5x = 22 +18

2x = 40

x= 20

-> T

7)

9x-6x = 7-4

3x = 3

x= 3/3

x= 1

-> A

8)

x/6 = 3

x = 6*3

x = 18

-> R

9)

2x-10 = 8

2x = 8+10

2x = 18

x= 18/2

x =9

-> I

10)

x = (9*7)/3

x = 63/3

x =21

-> U

11)

2x-2 = 3x-15

-2+15 = 3x -2x

x = 13

-> M

PLANETARIUM