Sagot :
Bjr,
2(x + 4) - (5x - 2) - 3(2x + 1) + 11 = 0
2x + 8 - 5x + 2 - 6x - 3 + 11 = 0
- 3x + 10 - 6x - 3 + 11 = 0
- 9x + 21 - 3 = 0
- 9x + 18 = 0
-9x = - 18
x = -18/-9
x = 18/9 = 2
Hello
2( x + 4 ) - ( 5x - 2 ) - 3 * ( 2x + 1) + 11 = 0
2x + 8 - 5x + 2 -6x - 3 + 11 = 0
-9x + 18 = 0
-9x = -18
x = 18/9
x = 2
Bonne journée