hirondelle52

Bonjour,

4 (2x - 3) = 5 (8x + 2) -4 (6x+1)

8x -12 = 40x +10 -24x -4

-12-10+4 = 40x -24x -8x

-18 = 8x

8x = -18

x = -18/8 = -9/4 = 2,25