👤

Sagot :

VINS

bonsoir

3 x + 8 = 9  est  ok

4 x = 8

x = 8/4 = 2

7 x + 2 = 4 x + 9

7 x - 4 x = 9 - 2

3 x = 7

x = 7/3

(7 x = 11  x  ne veut rien dire  ... )

( x + 3 ) ( x - 7 ) = 0   = ta solution est juste

© 2024 IDNLearn. All rights reserved.