SAIDTOUKANI2
Answered

Aider moi svp
Donner la solution de les èquations suivantes :
2(x+1)=17
3x-1=23
2x+7 =31
X-5 =9
X+3 =13

Sagot :

Bonjour,

2(x+1)=17

2x+2 = 17

2x = 17-2

2x= 15

x= 15/2 = 7,5

3x-1=23

3x= 23 +1

3x= 24

x= 24/3 = 8

2x+7 =31

2x= 31-7

2x= 24

x= 24/2 = 12

X-5 =9

x= 9+5

x= 14

X+3 =13

x= 13-3

x= 10