YACDD263
Answered

Bonjour
ercice 1
Niveau 1
soudre les équations suivantes :
a. 7 = 14
5x = 30
b. -6x = -42
-2x = 4
c. 4x = 0,4
7x = 5,6
d. 7x = 4
6x = 16
8x = 92
- 9x = 90
4x = -3,2
3x = -4​

Sagot :

Bonjour,

7x = 14

x = 14/7

x = 2

5x = 30

x = 30/5 = 6

-6x = -42

x = -42/-6

x = 42/6 = 7

-2x = 4

x = -4/2 = -2

7x = 5.6

x = 5.6/7

7x = 4

x = 4/7

6x = 16

x = 16/6 = 8/3

8x = 92

x = 92/8 = 11.5

-9x = 90

x = -90/9 = -10

4x = -3.2

x = -3.2/

3x = -4

x = -4/3