Sagot :
Réponse :
bonjour
[tex]- 10 x - 13 = 0\\- 10 x = 13\\x = - 13/10 \\\\x + 1 = 4\\x = 4 - 1\\x = 3 \\\\\\- 3 x = 1 \\x = - 1/3 \\\\\\6 x - 3 = 7 x - 2 \\6 x - 7 x = - 2 + 3 \\- x = 1 \\x = - 1 \\\\\\11 x + 9 = 7\\11 x = - 2 \\x = - 2/11 \\\\3 x = - 7 \\x = - 7/3 \\\\[/tex]
Explications étape par étape :
Bonjour,
-10x - 13 = 0 ⇒ -10x = 13 ⇒ x = -13/10
x + 1 = 4 ⇒ x = 4 - 1 = 3
-3x = 1 ⇒x = -1/3
6x - 3 = 7x - 2 ⇒ -3 + 2 = 7x - 6x ⇒ x = -1
11x + 9 = 7 ⇒ 11x = 7 - 9 = -2 ⇒ x = -2/11
3x = -7 ⇒ x = -7/3