Bonjour aidez moi svppp il faut resoudre ces équations je ne comprends rien 1) 6t - 9 = 2t + 11 2) 9u – 6 = -5u + 8
3) (3x + 6) (2x – 6) = 0 4) ( 2t – 4) + ( 6t + 9) = 0
3) (3x + 6) (2x – 6) = 0 4) ( 2t – 4) + ( 6t + 9) = 0
More Questions From This User See All
Lista de comentários
Verified answer
Bonjour,
Résoudre ces équations :
1) 6t - 9 = 2t + 11
6t - 2t = 11 + 9
4t = 20
t = 20/4
t = 5
2) 9u – 6 = -5u + 8
9u + 5u = 8 + 6
14u = 14
u = 14/4
u = 1
3) (3x + 6) (2x – 6) = 0
3x + 6 = 0 ou 2x - 6 = 0
3x = - 6 2x = 6
x = - 6/3 x = 6/2
x = - 2 x = 3
4) ( 2t – 4) + ( 6t + 9) = 0
2t - 4 + 6t + 9 = 0
2t + 6t = 4 - 9
8t = - 5
t = - 5/8.
Hello,
6t - 9 = 2t + 11
6t - 2t = 11 + 9
4t = 20
t = 20/4 = 5
9u - 6 = -5u + 8
9u + 5u = 8 + 6
14u = 14
u = 14/14 = 1
(3x + 6)(2x - 6) = 0
3x + 6 = 0
3x = -6
x = -6/3 = -2
et
2x - 6 = 0
2x = 6
x = 6/2 = 3
(2t - 4) + (6t + 9) = 0
2t - 4 + 6t + 9 = 0
8t + 5 = 0
8t = -5
t = -5/8