Bonjour
2 - 3 (4 - x) = 2/3x + 1
2 - 12 + 3x = 2/3x + 1
3x - 2/3x = 1 - 2 + 12
9/3x - 2/3x = 11
7/3x = 33/3
7x = 33
x = 33/7
(5x - 4/7) (8x + 3) = 0
5x - 4/7 = 0 ou 8x + 3 = 0
5x = 4/7 8x = - 3
35x = 4 x = - 3/8.
x = 4/35