Sagot :
bonjour
A = 3 x + 8 + 15 x - 12
= 18 x - 4
B = 10 - x - 5 x - 7
= - 6 x + 3
C = 4 x /7 + x - 1/3 + 2/5
= 4 x / 7 + 7 x / 7 - 5/15 + 6 /15
= 11 x /7 + 1/15
Bonjour,
A = 3x + 8 + 15x - 12
18x -4
B = 10 - x - 5x - 7
-6x +3
C = 4/7x + x - 1/3 + 2/5
4x/7 + 7x /7 - 5/15 + 6/15
11x/7 + 1/15