Sagot :
Bonjour
Exercice 1: Résous chaque équations.
a. x+2= 0
x = - 2
b. -3+x= 0
x = 3
c. -9+x= -4
x = - 4 + 9
x = 5
d. 7 -x= -2
- x = - 2 - 7
- x = - 9
x = 9
e. 2 -x= 10
- x = 10 - 2
- x = 8
x = - 8
Exercice 2: Même énoncé qu'à l'exercice précédent.
a. 2x = 7
x = 7/2
b. 7x = -2
x = - 2/7
c. -3x = 4
x = - 4/3
d. -9x = -45
x = 45/9
x = 5
e. 11x = 44
x = 44/11
x = 4.
a- x +2 = 0
x = -2
b- -3+ x = 0
x = 3
c- -9+x = -4
x = -4 + 9
x = 5
d- 7-x = -2
7 = -2 + x
7+2= x
9 = x
e- 2-x=10
2 = 10 + x
2-10= x
-8 = x
2)
a- 2x = 7
x = 7/2
b- 7x = -2
x = -2/7
c- -3x = 4
x = 4/-3
d- -9x = -45
x = -45/-9
x = 5
e- 11x = 44
x = 44/11
x = 4
x = -2
b- -3+ x = 0
x = 3
c- -9+x = -4
x = -4 + 9
x = 5
d- 7-x = -2
7 = -2 + x
7+2= x
9 = x
e- 2-x=10
2 = 10 + x
2-10= x
-8 = x
2)
a- 2x = 7
x = 7/2
b- 7x = -2
x = -2/7
c- -3x = 4
x = 4/-3
d- -9x = -45
x = -45/-9
x = 5
e- 11x = 44
x = 44/11
x = 4