Bonjour,
x/(-3/7) = 1
x* 7/-3 = 1
7x/-3 = 1
7x= 1*-3
7x=- 3
x= -3/7
(-3/7)/ (-3/7) =
-3/7 * 7/-3 = -21/-21 = 1
(3/7)/(-3/7)
3/7 * 7/-3 = 21/-21 = -1
x/( -3/7) = 3
x* 7/-3 = 3
7x /-3 = 3
7x /3*-3 = 3
7x /-9 = 3
7x= 3*-9
7x = -27
x= -27/7 = -3
(-27/7) / (-3/7)
x/(-3/7) = -7
x* 7/-3 = -7
7x /-3 = -7
7x = -7*-3
7x = 21
x = 21/7